[SCSI] aic79xx: SLOWCRC fix

This patch introduces the SLOWCRC handling for certain buggy chipsets.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index 2cfdbef..1d11f7e 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -37,7 +37,7 @@
  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGES.
  *
- * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#108 $
+ * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#109 $
  *
  * $FreeBSD$
  */
@@ -222,6 +222,7 @@
 typedef enum {
 	AHD_FENONE		= 0x00000,
 	AHD_WIDE  		= 0x00001,/* Wide Channel */
+	AHD_AIC79XXB_SLOWCRC    = 0x00002,/* SLOWCRC bit should be set */
 	AHD_MULTI_FUNC		= 0x00100,/* Multi-Function/Channel Device */
 	AHD_TARGETMODE		= 0x01000,/* Has tested target mode support */
 	AHD_MULTIROLE		= 0x02000,/* Space for two roles at a time */