[SCSI] aic79xx: sequencer fixes

This patch updates the aic79xx sequencer with latest fixes from adaptec.
The sequencer code now corresponds with adaptec version 2.0.15.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 25 insertions, 4 deletions

diff --git a/drivers/scsi/aic7xxx/aic79xx.reg b/drivers/scsi/aic7xxx/aic79xx.reg
index 3a3204703b15..be14e2ecb8f7 100644
--- a/drivers/scsi/aic7xxx/aic79xx.reg
+++ b/drivers/scsi/aic7xxx/aic79xx.reg
@@ -1,7 +1,7 @@
 /*
  * Aic79xx register and scratch ram definitions.
  *
- * Copyright (c) 1994-2001 Justin T. Gibbs.
+ * Copyright (c) 1994-2001, 2004 Justin T. Gibbs.
  * Copyright (c) 2000-2002 Adaptec Inc.
  * All rights reserved.
  *
@@ -39,7 +39,7 @@
  *
  * $FreeBSD$
  */
-VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#76 $"
+VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#77 $"
 
 /*
  * This file is processed by the aic7xxx_asm utility for use in assembling
@@ -3715,8 +3715,9 @@ scratch_ram {
 
         SEQ_FLAGS2 {
                 size            1
-                field   TARGET_MSG_PENDING        0x02
-                field   SELECTOUT_QFROZEN         0x04
+                field   PENDING_MK_MESSAGE      0x01
+                field   TARGET_MSG_PENDING      0x02
+                field   SELECTOUT_QFROZEN       0x04
         }
 
         ALLOCFIFO_SCBPTR {
@@ -3777,6 +3778,26 @@ scratch_ram {
         CMDSIZE_TABLE {
                 size            8
         }
+        /*
+         * When an SCB with the MK_MESSAGE flag is
+         * queued to the controller, it cannot enter
+         * the waiting for selection list until the
+         * selections for any previously queued
+         * commands to that target complete.  During
+         * the wait, the MK_MESSAGE SCB is queued
+         * here.
+         */
+        MK_MESSAGE_SCB {
+                size            2
+        }
+        /*
+         * Saved SCSIID of MK_MESSAGE_SCB to avoid
+         * an extra SCBPTR operation when deciding
+         * if the MK_MESSAGE_SCB can be run.
+         */
+        MK_MESSAGE_SCSIID {
+                size            1
+        }
 }
 
 /************************* Hardware SCB Definition ****************************/