Date: Thu, 7 Jan 2010 09:02:31 +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-7@freebsd.org Subject: svn commit: r201719 - stable/7/sys/dev/ata Message-ID: <201001070902.o0792VFw001042@svn.freebsd.org>
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Author: mav Date: Thu Jan 7 09:02:30 2010 New Revision: 201719 URL: http://svn.freebsd.org/changeset/base/201719 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. Modified: stable/7/sys/dev/ata/ata-disk.c Directory Properties: stable/7/sys/ (props changed) stable/7/sys/cddl/contrib/opensolaris/ (props changed) stable/7/sys/contrib/dev/acpica/ (props changed) stable/7/sys/contrib/pf/ (props changed) Modified: stable/7/sys/dev/ata/ata-disk.c ============================================================================== --- stable/7/sys/dev/ata/ata-disk.c Thu Jan 7 06:59:16 2010 (r201718) +++ stable/7/sys/dev/ata/ata-disk.c Thu Jan 7 09:02:30 2010 (r201719) @@ -155,6 +155,10 @@ ad_attach(device_t dev) adp->disk->d_maxsize = ch->dma->max_iosize; else adp->disk->d_maxsize = 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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