Author: mav
Date: Wed Apr 14 15:29:32 2010
New Revision: 206604
URL: http://svn.freebsd.org/changeset/base/206604
Log:
For early ALI chips do not announce I/O sizes that require unsupported
48bit DMA commands.
Modified:
head/sys/dev/ata/chipsets/ata-acerlabs.c
Modified: head/sys/dev/ata/chipsets/ata-acerlabs.c
==============================================================================
--- head/sys/dev/ata/chipsets/ata-acerlabs.c Wed Apr 14 15:23:16 2010
(r206603)
+++ head/sys/dev/ata/chipsets/ata-acerlabs.c Wed Apr 14 15:29:32 2010
(r206604)
@@ -184,8 +184,11 @@ ata_ali_ch_attach(device_t dev)
if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7)
ch->flags |= ATA_CHECKS_CABLE;
/* older chips can't do 48bit DMA transfers */
- if (ctlr->chip->chiprev <= 0xc4)
+ if (ctlr->chip->chiprev <= 0xc4) {
ch->flags |= ATA_NO_48BIT_DMA;
+ if (ch->dma.max_iosize > 256 * 512)
+ ch->dma.max_iosize = 256 * 512;
+ }
return 0;
}
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
