From 9cd394ea9657da13e9bceeadb5d18ec743c77fc5 Mon Sep 17 00:00:00 2001 From: Pawel Jakub Dawidek Date: Tue, 31 Oct 2006 21:19:25 +0000 Subject: Implement BIO_FLUSH handling for da(4), amr(4), ata(4) and ataraid(4). Sponsored by: home.pl --- sys/dev/ata/ata-disk.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'sys/dev/ata/ata-disk.c') diff --git a/sys/dev/ata/ata-disk.c b/sys/dev/ata/ata-disk.c index acdb37a4b1da..f82c098dc20e 100644 --- a/sys/dev/ata/ata-disk.c +++ b/sys/dev/ata/ata-disk.c @@ -159,6 +159,8 @@ ad_attach(device_t dev) adp->disk->d_fwsectors = adp->sectors; adp->disk->d_fwheads = adp->heads; adp->disk->d_unit = device_get_unit(dev); + if (atadev->param.support.command2 & ATA_SUPPORT_FLUSHCACHE) + adp->disk->d_flags = DISKFLAG_CANFLUSHCACHE; disk_create(adp->disk, DISK_VERSION); device_add_child(dev, "subdisk", device_get_unit(dev)); ad_firmware_geom_adjust(dev, adp->disk); @@ -269,6 +271,17 @@ ad_strategy(struct bio *bp) else request->u.ata.command = ATA_WRITE; break; + case BIO_FLUSH: + request->u.ata.lba = 0; + request->u.ata.count = 0; + request->u.ata.feature = 0; + request->bytecount = 0; + request->transfersize = 0; + request->timeout = 1; + request->retries = 0; + request->flags = ATA_R_CONTROL; + request->u.ata.command = ATA_FLUSHCACHE; + break; default: device_printf(dev, "FAILURE - unknown BIO operation\n"); ata_free_request(request); -- cgit v1.3