[SCSI] megaraid_sas: Add 4k FastPath DIF support

The following patch for megaraid_sas will allow Fastpath T10PI/DIF
frame builds to work with 4k sector size.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 74030af..a6bccf0 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -1206,7 +1206,7 @@
 				MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
 		}
 		io_request->Control |= (0x4 << 26);
-		io_request->EEDPBlockSize = MEGASAS_EEDPBLOCKSIZE;
+		io_request->EEDPBlockSize = scp->device->sector_size;
 	} else {
 		/* Some drives don't support 16/12 byte CDB's, convert to 10 */
 		if (((cdb_len == 12) || (cdb_len == 16)) &&
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h
index a7c64f0..f68a3cd 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.h
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h
@@ -61,7 +61,6 @@
 #define MEGASAS_SCSI_ADDL_CDB_LEN                   0x18
 #define MEGASAS_RD_WR_PROTECT_CHECK_ALL		    0x20
 #define MEGASAS_RD_WR_PROTECT_CHECK_NONE	    0x60
-#define MEGASAS_EEDPBLOCKSIZE			    512
 
 /*
  * Raid context flags