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From: Alexander Motin <mav@FreeBSD.org>
Date: Wed, 16 Dec 2009 17:42:03 +0000 (UTC)
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Subject: svn commit: r200607 - head/sys/dev/ata/chipsets
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Author: mav
Date: Wed Dec 16 17:42:02 2009
New Revision: 200607
URL: http://svn.freebsd.org/changeset/base/200607

Log:
  Large I/Os on Promise controllers reported to cause UDMA ICRC errors and
  subsequent timeouts. Restore previous limit for now, at least until
  I will have hardware to experiment.
  
  PR:             kern/141438

Modified:
  head/sys/dev/ata/chipsets/ata-promise.c

Modified: head/sys/dev/ata/chipsets/ata-promise.c
==============================================================================
--- head/sys/dev/ata/chipsets/ata-promise.c	Wed Dec 16 17:17:40 2009	(r200606)
+++ head/sys/dev/ata/chipsets/ata-promise.c	Wed Dec 16 17:42:02 2009	(r200607)
@@ -957,6 +957,7 @@ ata_promise_mio_dmainit(device_t dev)
     ata_dmainit(dev);
     /* note start and stop are not used here */
     ch->dma.setprd = ata_promise_mio_setprd;
+    ch->dma.max_iosize = 65536;
 }