diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 4014225300a07c6f41c54e7705d01e79386243cf..ffd1390b155bf0eee4034c89a595d161b3033420 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -488,12 +488,13 @@ megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,
 
  /**
  * megasas_get_frame_count - Computes the number of frames
+ * @frame_type		: type of frame- io or pthru frame
  * @sge_count		: number of sg elements
  *
  * Returns the number of frames required for numnber of sge's (sge_count)
  */
 
-static u32 megasas_get_frame_count(u8 sge_count)
+static u32 megasas_get_frame_count(u8 sge_count, u8 frame_type)
 {
 	int num_cnt;
 	int sge_bytes;
@@ -504,13 +505,22 @@ static u32 megasas_get_frame_count(u8 sge_count)
 	    sizeof(struct megasas_sge32);
 
 	/*
-	* Main frame can contain 2 SGEs for 64-bit SGLs and
-	* 3 SGEs for 32-bit SGLs
-	*/
-	if (IS_DMA64)
-		num_cnt = sge_count - 2;
-	else
-		num_cnt = sge_count - 3;
+	 * Main frame can contain 2 SGEs for 64-bit SGLs and
+	 * 3 SGEs for 32-bit SGLs for ldio &
+	 * 1 SGEs for 64-bit SGLs and
+	 * 2 SGEs for 32-bit SGLs for pthru frame
+	 */
+	if (unlikely(frame_type == PTHRU_FRAME)) {
+		if (IS_DMA64)
+			num_cnt = sge_count - 1;
+		else
+			num_cnt = sge_count - 2;
+	} else {
+		if (IS_DMA64)
+			num_cnt = sge_count - 2;
+		else
+			num_cnt = sge_count - 3;
+	}
 
 	if(num_cnt>0){
 		sge_bytes = sge_sz * num_cnt;
@@ -592,7 +602,8 @@ megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,
 	 * Compute the total number of frames this command consumes. FW uses
 	 * this number to pull sufficient number of frames from host memory.
 	 */
-	cmd->frame_count = megasas_get_frame_count(pthru->sge_count);
+	cmd->frame_count = megasas_get_frame_count(pthru->sge_count,
+							PTHRU_FRAME);
 
 	return cmd->frame_count;
 }
@@ -709,7 +720,7 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
 	 * Compute the total number of frames this command consumes. FW uses
 	 * this number to pull sufficient number of frames from host memory.
 	 */
-	cmd->frame_count = megasas_get_frame_count(ldio->sge_count);
+	cmd->frame_count = megasas_get_frame_count(ldio->sge_count, IO_FRAME);
 
 	return cmd->frame_count;
 }
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 6466bdf548c2d8addce967c3b08f2fca7647d009..fbbfe2ea049f950d0c4604e71dc7a986a032c709 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -542,6 +542,10 @@ struct megasas_ctrl_info {
 
 #define MEGASAS_FW_BUSY				1
 
+/* Frame Type */
+#define IO_FRAME				0
+#define PTHRU_FRAME				1
+
 /*
  * When SCSI mid-layer calls driver's reset routine, driver waits for
  * MEGASAS_RESET_WAIT_TIME seconds for all outstanding IO to complete. Note