diff options
| author | Yang, Bo <[email protected]> | 2008-08-10 12:42:37 -0700 |
|---|---|---|
| committer | James Bottomley <[email protected]> | 2008-08-16 10:12:19 -0500 |
| commit | 06f579dee5dd75c2aaf8fe83d034b5470eeee2f4 (patch) | |
| tree | 57e96328d00390037f95a58e1225f1e2099e7bdc | |
| parent | d211f052fa58a053639bc51501cb64421157d362 (diff) | |
[SCSI] megaraid_sas: add readl to force PCI posting flush
MegaRAID SAS Driver get unexpected Interrupt. Add the dummy readl to
force PCI flush will fix this issue.
Signed-off-by: Bo Yang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Stable Tree <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index fc7ac158476c..d7b99843ca3e 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -198,6 +198,9 @@ megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) */ writel(status, ®s->outbound_intr_status); + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_status); + return 0; } @@ -293,6 +296,9 @@ megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs) */ writel(status, ®s->outbound_doorbell_clear); + /* Dummy readl to force pci flush */ + readl(®s->outbound_doorbell_clear); + return 0; } /** |