Add our controller name to the front of our

diagnostic "Setting Mode" messages.

Use a read of HCNTRL to flush our write to CLRCMDCMPLT
on the RevB.  This allows us to check to see if the sequencer
is paused and to initiate the interrupt collision workaround
without incuring an extra read.

Approved by:	re (blanket)

sys/dev/aic7xxx/aic79xx_inline.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_inline.h#36 $
+ * $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#39 $
  *
  * $FreeBSD$
  */
@@ -109,7 +109,7 @@ ahd_set_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
 	 || ahd->dst_mode == AHD_MODE_UNKNOWN)
 		panic("Setting mode prior to saving it.\n");
 	if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
-		printf("Setting mode 0x%x\n",
+		printf("%s: Setting mode 0x%x\n", ahd_name(ahd),
 		       ahd_build_mode_state(ahd, src, dst));
 #endif
 	ahd_outb(ahd, MODE_PTR, ahd_build_mode_state(ahd, src, dst));
@@ -265,6 +265,7 @@ static __inline void
 ahd_setup_scb_common(struct ahd_softc *ahd, struct scb *scb)
 {
 	/* XXX Handle target mode SCBs. */
+	scb->crc_retry_count = 0;
 	if ((scb->flags & SCB_PACKETIZED) != 0) {
 		/* XXX what about ACA??  It is type 4, but TAG_TYPE == 0x3. */
 		scb->hscb->task_attribute= scb->hscb->control & SCB_TAG_TYPE;
@@ -898,7 +899,19 @@ ahd_intr(struct ahd_softc *ahd)
 		 * and after the sequencer has added new entries
 		 * and asserted the interrupt again.
 		 */
-		ahd_flush_device_writes(ahd);
+		if ((ahd->bugs & AHD_INTCOLLISION_BUG) != 0) {
+			if (ahd_is_paused(ahd)) {
+				/*
+				 * Potentially lost SEQINT.
+				 * If SEQINTCODE is non-zero,
+				 * simulate the SEQINT.
+				 */
+				if (ahd_inb(ahd, SEQINTCODE) != NO_SEQINT)
+					intstat |= SEQINT;
+			}
+		} else {
+			ahd_flush_device_writes(ahd);
+		}
 		ahd_run_qoutfifo(ahd);
 #ifdef AHD_TARGET_MODE
 		if ((ahd->flags & AHD_TARGETROLE) != 0)