Date: Fri, 11 Dec 2009 12:44:44 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r200409 - stable/8/sys/dev/ata Message-ID: <200912111244.nBBCiih6009014@svn.freebsd.org>
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Author: mav Date: Fri Dec 11 12:44:44 2009 New Revision: 200409 URL: http://svn.freebsd.org/changeset/base/200409 Log: MFC r200353: Limit maximum I/O size, depending on command set supported by device. It is required to suppot non-LBA48 devices with MAXPHYS above 128K. Same is done in ada(4). Modified: stable/8/sys/dev/ata/ata-disk.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) Modified: stable/8/sys/dev/ata/ata-disk.c ============================================================================== --- stable/8/sys/dev/ata/ata-disk.c Fri Dec 11 12:38:15 2009 (r200408) +++ stable/8/sys/dev/ata/ata-disk.c Fri Dec 11 12:44:44 2009 (r200409) @@ -126,6 +126,10 @@ ad_attach(device_t dev) adp->disk->d_name = "ad"; adp->disk->d_drv1 = dev; adp->disk->d_maxsize = ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS; + if (atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) + adp->disk->d_maxsize = min(adp->disk->d_maxsize, 65536 * DEV_BSIZE); + else /* 28bit ATA command limit */ + adp->disk->d_maxsize = min(adp->disk->d_maxsize, 256 * DEV_BSIZE); adp->disk->d_sectorsize = DEV_BSIZE; adp->disk->d_mediasize = DEV_BSIZE * (off_t)adp->total_secs; adp->disk->d_fwsectors = adp->sectors;
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