Date: Thu, 10 Dec 2009 09:26:56 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r200353 - head/sys/dev/ata Message-ID: <200912100926.nBA9Quia057027@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: mav Date: Thu Dec 10 09:26:56 2009 New Revision: 200353 URL: http://svn.freebsd.org/changeset/base/200353 Log: 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: head/sys/dev/ata/ata-disk.c Modified: head/sys/dev/ata/ata-disk.c ============================================================================== --- head/sys/dev/ata/ata-disk.c Thu Dec 10 07:48:47 2009 (r200352) +++ head/sys/dev/ata/ata-disk.c Thu Dec 10 09:26:56 2009 (r200353) @@ -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;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200912100926.nBA9Quia057027>