async_tx: add sum check flags
Replace the flat zero_sum_result with a collection of flags to contain
the P (xor) zero-sum result, and the soon to be utilized Q (raid6 reed
solomon syndrome) zero-sum result. Use the SUM_CHECK_ namespace instead
of DMA_ since these flags will be used on non-dma-zero-sum enabled
platforms.
Reviewed-by: Andre Noll <maan@systemlinux.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index e7baabf..75f2c6c 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -2,6 +2,7 @@
#define _RAID5_H
#include <linux/raid/xor.h>
+#include <linux/dmaengine.h>
/*
*
@@ -215,8 +216,8 @@
* @target - STRIPE_OP_COMPUTE_BLK target
*/
struct stripe_operations {
- int target;
- u32 zero_sum_result;
+ int target;
+ enum sum_check_flags zero_sum_result;
} ops;
struct r5dev {
struct bio req;
