From: Peter Avalos <pavalos@dragonflybsd.org>
Date: Fri, 6 Jul 2007 06:35:41 +0000 (+0000)
Subject: On Rev. B silicon, we disabled the enhanced busfree detection logic to
X-Git-Tag: v2.0.1~2629
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/f721d3d46aad70e70b717b8b1744f549cb18eaf4

On Rev. B silicon, we disabled the enhanced busfree detection logic to
close holes in detecting busfrees that occur after a packetized target
transitions to a non-packetized phase.  The most common case where this
occurs is when a target is externally reset so the controller believes
a packetzied negotiation agreement is still in effect.  Unfortunately,
disabling this feature seems to cause problems for the 7901B.  Re-enable
ehanced busfree detection for this part.

Obtained-from: FreeBSD
---

diff --git a/sys/dev/disk/aic7xxx/aic79xx_pci.c b/sys/dev/disk/aic7xxx/aic79xx_pci.c
index b0e5d0e6e6..832dd1cdcb 100644
--- a/sys/dev/disk/aic7xxx/aic79xx_pci.c
+++ b/sys/dev/disk/aic7xxx/aic79xx_pci.c
@@ -40,8 +40,8 @@
  *
  * $Id: //depot/aic7xxx/aic7xxx/aic79xx_pci.c#88 $
  *
- * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_pci.c,v 1.21 2004/08/22 13:54:27 gibbs Exp $
- * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_pci.c,v 1.13 2007/07/06 05:20:00 pavalos Exp $
+ * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_pci.c,v 1.23 2005/02/16 18:16:35 gibbs Exp $
+ * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_pci.c,v 1.14 2007/07/06 06:35:41 pavalos Exp $
  */
 
 #ifdef __linux__
@@ -995,14 +995,14 @@ ahd_aic790X_setup(struct ahd_softc *ahd)
 
 		ahd->features |= AHD_RTI|AHD_NEW_IOCELL_OPTS
 			      |  AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY;
-		ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG
-			  |  AHD_BUSFREEREV_BUG;
+		ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG;
 
 		/*
 		 * Some issues have been resolved in the 7901B.
 		 */
 		if ((ahd->features & AHD_MULTI_FUNC) != 0)
-			ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG;
+			ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG
+				  |  AHD_BUSFREEREV_BUG;
 
 		/*
 		 * IO Cell paramter setup.