PERFORCE change 165606 for review

[Alexander Motin]

http://perforce.freebsd.org/chv.cgi?CH=165606

Change 165606 by mav at mav_mavbook on 2009/07/04 19:18:44

	Add hypothetic 32MB data size limitation for 48bit commands.

Affected files ...

.. //depot/projects/scottl-camlock/src/sys/cam/ata/ata_da.c#17 edit

Differences ...

==== //depot/projects/scottl-camlock/src/sys/cam/ata/ata_da.c#17 (text+ko) ====

@@ -705,7 +705,7 @@
 	softc->disk->d_name = "ada";
 	softc->disk->d_drv1 = periph;
 	if (cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48)
-		softc->disk->d_maxsize = MAXPHYS; /* ahci driver limit */
+		softc->disk->d_maxsize = min(MAXPHYS, 65535 * 512);
 	else					/* 28bit ATA command limit */
 		softc->disk->d_maxsize = min(MAXPHYS, 255 * 512);
 	softc->disk->d_unit = periph->unit_number;