[SCSI] ipr: Implement block iopoll
This patch implements blk iopoll in ipr driver for performance improvement.
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 6fade57..c5d1e62 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -32,6 +32,7 @@
#include <linux/libata.h>
#include <linux/list.h>
#include <linux/kref.h>
+#include <linux/blk-iopoll.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -492,6 +493,8 @@
u8 allow_interrupts:1;
u8 ioa_is_dead:1;
u8 allow_cmds:1;
+
+ struct blk_iopoll iopoll;
};
/* Command packet structure */
@@ -1348,6 +1351,7 @@
u16 max_cmds;
u8 cache_line_size;
u8 clear_isr;
+ u32 iopoll_weight;
struct ipr_interrupt_offsets regs;
};
@@ -1534,6 +1538,8 @@
char desc[22];
} vectors_info[IPR_MAX_MSIX_VECTORS];
+ u32 iopoll_weight;
+
}; /* struct ipr_ioa_cfg */
struct ipr_cmnd {