2 * Copyright (c) 1998 - 2003 Søren Schmidt <sos@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 /* structure describing an ATA disk */
33 struct ata_device *device; /* ptr to device softc */
34 int lun; /* logical unit number */
35 u_int64_t total_secs; /* total # of sectors (LBA) */
38 u_int32_t transfersize; /* size of each transfer */
39 int num_tags; /* number of tags supported */
40 int max_iosize; /* max transfer HW supports */
41 int flags; /* drive flags */
42 #define AD_F_LABELLING 0x0001
43 #define AD_F_CHS_USED 0x0002
44 #define AD_F_32B_ENABLED 0x0004
45 #define AD_F_TAG_ENABLED 0x0008
46 #define AD_F_RAID_SUBDISK 0x0010
48 struct mtx queue_mtx; /* queue lock */
49 struct bio_queue_head queue; /* head of request queue */
50 struct disk *disk; /* disklabel/slice stuff */