diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 7b522ff345d5..b1125012bee0 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -64,6 +64,7 @@
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_spi.h>
 
 #include "dc395x.h"
 
@@ -1281,11 +1282,7 @@ static void build_sdtr(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 	} else if (dcb->sync_offset == 0)
 		dcb->sync_offset = SYNC_NEGO_OFFSET;
 
-	*ptr++ = MSG_EXTENDED;	/* (01h) */
-	*ptr++ = 3;		/* length */
-	*ptr++ = EXTENDED_SDTR;	/* (01h) */
-	*ptr++ = dcb->min_nego_period;	/* Transfer period (in 4ns) */
-	*ptr++ = dcb->sync_offset;	/* Transfer period (max. REQ/ACK dist) */
+	spi_populate_sync_msg(ptr, dcb->min_nego_period, dcb->sync_offset);
 	srb->msg_count += 5;
 	srb->state |= SRB_DO_SYNC_NEGO;
 }
@@ -1305,10 +1302,7 @@ static void build_wdtr(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 			srb->msgout_buf[1]);
 		return;
 	}
-	*ptr++ = MSG_EXTENDED;	/* (01h) */
-	*ptr++ = 2;		/* length */
-	*ptr++ = EXTENDED_WDTR;	/* (03h) */
-	*ptr++ = wide;
+	spi_populate_width_msg(ptr, wide);
 	srb->msg_count += 4;
 	srb->state |= SRB_DO_WIDE_NEGO;
 }
@@ -1476,7 +1470,7 @@ static u8 start_scsi(struct AdapterCtlBlk* acb, struct DeviceCtlBlk* dcb,
 			return 1;
 		}
 		/* Send Tag id */
-		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, MSG_SIMPLE_QTAG);
+		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, SIMPLE_QUEUE_TAG);
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, tag_number);
 		dcb->tag_mask |= tag_mask;
 		srb->tag_number = tag_number;
@@ -1732,8 +1726,9 @@ static void msgout_phase1(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
 	if (!srb->msg_count) {
 		dprintkdbg(DBG_0, "msgout_phase1: (0x%p) NOP msg\n",
 			srb->cmd);
-		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, MSG_NOP);
-		DC395x_write16(acb, TRM_S1040_SCSI_CONTROL, DO_DATALATCH);	/* it's important for atn stop */
+		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, NOP);
+		DC395x_write16(acb, TRM_S1040_SCSI_CONTROL, DO_DATALATCH);
+		/* it's important for atn stop */
 		DC395x_write8(acb, TRM_S1040_SCSI_COMMAND, SCMD_FIFO_OUT);
 		return;
 	}
@@ -1741,7 +1736,7 @@ static void msgout_phase1(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
 	for (i = 0; i < srb->msg_count; i++)
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, *ptr++);
 	srb->msg_count = 0;
-	if (srb->msgout_buf[0] == MSG_ABORT)
+	if (srb->msgout_buf[0] == ABORT_TASK_SET)
 		srb->state = SRB_ABORT_SENT;
 
 	DC395x_write8(acb, TRM_S1040_SCSI_COMMAND, SCMD_FIFO_OUT);
@@ -2538,7 +2533,7 @@ static struct ScsiReqBlk *msgin_qtag(struct AdapterCtlBlk *acb,
 	srb = acb->tmp_srb;
 	srb->state = SRB_UNEXPECT_RESEL;
 	dcb->active_srb = srb;
-	srb->msgout_buf[0] = MSG_ABORT_TAG;
+	srb->msgout_buf[0] = ABORT_TASK;
 	srb->msg_count = 1;
 	DC395x_ENABLE_MSGOUT;
 	dprintkl(KERN_DEBUG, "msgin_qtag: Unknown tag %i - abort\n", tag);
@@ -2780,7 +2775,7 @@ static void msgin_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
 			msgin_reject(acb, srb);
 			break;
 
-		case MSG_IGNOREWIDE:
+		case IGNORE_WIDE_RESIDUE:
 			/* Discard  wide residual */
 			dprintkdbg(DBG_0, "msgin_phase0: Ignore Wide Residual!\n");
 			break;
diff --git a/drivers/scsi/dc395x.h b/drivers/scsi/dc395x.h
index a7786a6d462e..24a36c046d07 100644
--- a/drivers/scsi/dc395x.h
+++ b/drivers/scsi/dc395x.h
@@ -172,28 +172,6 @@
 
 #define SYNC_NEGO_OFFSET		15
 
-/* SCSI MSG BYTE */
-#define MSG_COMPLETE			0x00
-#define MSG_EXTENDED			0x01
-#define MSG_SAVE_PTR			0x02
-#define MSG_RESTORE_PTR			0x03
-#define MSG_DISCONNECT			0x04
-#define MSG_INITIATOR_ERROR		0x05
-#define MSG_ABORT			0x06
-#define MSG_REJECT_			0x07
-#define MSG_NOP				0x08
-#define MSG_PARITY_ERROR		0x09
-#define MSG_LINK_CMD_COMPL		0x0A
-#define MSG_LINK_CMD_COMPL_FLG		0x0B
-#define MSG_BUS_RESET			0x0C
-#define MSG_ABORT_TAG			0x0D
-#define MSG_SIMPLE_QTAG			0x20
-#define MSG_HEAD_QTAG			0x21
-#define MSG_ORDER_QTAG			0x22
-#define MSG_IGNOREWIDE			0x23
-#define MSG_IDENTIFY			0x80
-#define MSG_HOST_ID			0xC0
-
 /* cmd->result */
 #define STATUS_MASK_			0xFF
 #define MSG_MASK			0xFF00
