svn commit: r184135 - head/sys/dev/ata

[John Baldwin]

Author: jhb
Date: Tue Oct 21 18:51:55 2008
New Revision: 184135
URL: http://svn.freebsd.org/changeset/base/184135

Log:
  Restore the default maximum segment size for the bus dma tag to 64k as it
  is in 6.x and 7.x.  The typo caused 64k transactions to be unnecessarily
  split up into two PRD entries.

Modified:
  head/sys/dev/ata/ata-dma.c

Modified: head/sys/dev/ata/ata-dma.c
==============================================================================
--- head/sys/dev/ata/ata-dma.c	Tue Oct 21 18:50:52 2008	(r184134)
+++ head/sys/dev/ata/ata-dma.c	Tue Oct 21 18:51:55 2008	(r184135)
@@ -78,7 +78,7 @@ ata_dmainit(device_t dev)
     ch->dma.unload = ata_dmaunload;
     ch->dma.alignment = 2;
     ch->dma.boundary = 65536;
-    ch->dma.segsize = 63536;
+    ch->dma.segsize = 65536;
     ch->dma.max_iosize = 128 * DEV_BSIZE;
     ch->dma.max_address = BUS_SPACE_MAXADDR_32BIT;
     ch->dma.dma_slots = 6;