From 7f719ba784cd8534cfecfd8d8733df19295219e6 Mon Sep 17 00:00:00 2001 From: Alexander Motin Date: Thu, 10 Dec 2009 09:26:56 +0000 Subject: [PATCH] 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). --- sys/dev/ata/ata-disk.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/dev/ata/ata-disk.c b/sys/dev/ata/ata-disk.c index df753c534a4..0cd0a0f95c7 100644 --- a/sys/dev/ata/ata-disk.c +++ b/sys/dev/ata/ata-disk.c @@ -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;