[SCSI] ipr: Remove unnecessary interrupt clearing on new adapters

The latest ipr hardware no longer requires the driver to issue any MMIOs
to clear the interrupt so remove this to optimize performance.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index f94eaee2ff16..40cbee72b83c 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;