From b53d124a154d0022437e06cf737af6bcc7b1f190 Mon Sep 17 00:00:00 2001
From: "wenxiong@linux.vnet.ibm.com" <wenxiong@linux.vnet.ibm.com>
Date: Fri, 11 Jan 2013 17:43:52 -0600
Subject: [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>
---
 drivers/scsi/ipr.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/scsi/ipr.h')

diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 6fade571755c..c5d1e624c658 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 @@ struct ipr_hrr_queue {
 	u8 allow_interrupts:1;
 	u8 ioa_is_dead:1;
 	u8 allow_cmds:1;
+
+	struct blk_iopoll iopoll;
 };
 
 /* Command packet structure */
@@ -1348,6 +1351,7 @@ struct ipr_chip_cfg_t {
 	u16 max_cmds;
 	u8 cache_line_size;
 	u8 clear_isr;
+	u32 iopoll_weight;
 	struct ipr_interrupt_offsets regs;
 };
 
@@ -1534,6 +1538,8 @@ struct ipr_ioa_cfg {
 		char desc[22];
 	} vectors_info[IPR_MAX_MSIX_VECTORS];
 
+	u32 iopoll_weight;
+
 }; /* struct ipr_ioa_cfg */
 
 struct ipr_cmnd {
-- 
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