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From: Alexander Motin <mav@FreeBSD.org>
Date: Thu, 3 Sep 2009 19:02:17 +0000 (UTC)
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Subject: svn commit: r196796 - head/sys/dev/ahci
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Author: mav
Date: Thu Sep  3 19:02:17 2009
New Revision: 196796
URL: http://svn.freebsd.org/changeset/base/196796

Log:
  Round maxio for ATI SB600 to 64K.
  
  Submitted by:	scottl@

Modified:
  head/sys/dev/ahci/ahci.c

Modified: head/sys/dev/ahci/ahci.c
==============================================================================
--- head/sys/dev/ahci/ahci.c	Thu Sep  3 18:27:55 2009	(r196795)
+++ head/sys/dev/ahci/ahci.c	Thu Sep  3 19:02:17 2009	(r196796)
@@ -1944,7 +1944,7 @@ ahciaction(struct cam_sim *sim, union cc
 		cpi->maxio = MAXPHYS;
 		/* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */
 		if (pci_get_devid(device_get_parent(dev)) == 0x43801002)
-			cpi->maxio = min(cpi->maxio, 255 * 512);
+			cpi->maxio = min(cpi->maxio, 128 * 512);
 		cpi->ccb_h.status = CAM_REQ_CMP;
 		xpt_done(ccb);
 		break;