192108Sphk/*- 292108Sphk * Copyright (c) 2002 Poul-Henning Kamp 392108Sphk * Copyright (c) 2002 Networks Associates Technology, Inc. 492108Sphk * All rights reserved. 592108Sphk * 692108Sphk * This software was developed for the FreeBSD Project by Poul-Henning Kamp 792108Sphk * and NAI Labs, the Security Research Division of Network Associates, Inc. 892108Sphk * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 992108Sphk * DARPA CHATS research program. 1092108Sphk * 1192108Sphk * Redistribution and use in source and binary forms, with or without 1292108Sphk * modification, are permitted provided that the following conditions 1392108Sphk * are met: 1492108Sphk * 1. Redistributions of source code must retain the above copyright 1592108Sphk * notice, this list of conditions and the following disclaimer. 1692108Sphk * 2. Redistributions in binary form must reproduce the above copyright 1792108Sphk * notice, this list of conditions and the following disclaimer in the 1892108Sphk * documentation and/or other materials provided with the distribution. 1992108Sphk * 3. The names of the authors may not be used to endorse or promote 2092108Sphk * products derived from this software without specific prior written 2192108Sphk * permission. 2292108Sphk * 2392108Sphk * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 2492108Sphk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2592108Sphk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2692108Sphk * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2792108Sphk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2892108Sphk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2992108Sphk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3092108Sphk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3192108Sphk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3292108Sphk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3392108Sphk * SUCH DAMAGE. 3492108Sphk * 3592108Sphk * $FreeBSD$ 3692108Sphk */ 3792108Sphk 38104064Sphk#ifndef _GEOM_GEOM_SLICE_H_ 39104064Sphk#define _GEOM_GEOM_SLICE_H_ 40104064Sphk 4192108Sphkstruct g_slice { 4292108Sphk off_t offset; 4392108Sphk off_t length; 44105542Sphk u_int sectorsize; 4592108Sphk struct g_provider *provider; 4692108Sphk}; 4792108Sphk 48113712Sphkstruct g_slice_hot { 49113712Sphk off_t offset; 50113712Sphk off_t length; 51113713Sphk int ract; 52113713Sphk int dact; 53113713Sphk int wact; 54113712Sphk}; 55113712Sphk 5692108Sphktypedef int g_slice_start_t (struct bio *bp); 5792108Sphk 5892108Sphkstruct g_slicer { 59113712Sphk u_int nslice; 60113712Sphk u_int nprovider; 61113712Sphk struct g_slice *slices; 62113713Sphk 63113712Sphk u_int nhotspot; 64113712Sphk struct g_slice_hot *hotspot; 65113713Sphk 66113712Sphk void *softc; 67113712Sphk g_slice_start_t *start; 68113937Sphk g_event_t *hot; 6992108Sphk}; 7092108Sphk 7193776Sphkg_dumpconf_t g_slice_dumpconf; 72243333Sjhint g_slice_config(struct g_geom *gp, u_int idx, int how, off_t offset, off_t length, u_int sectorsize, const char *fmt, ...) __printflike(7, 8); 73114504Sphkvoid g_slice_spoiled(struct g_consumer *cp); 74155802Spjdvoid g_slice_orphan(struct g_consumer *cp); 75104064Sphk#define G_SLICE_CONFIG_CHECK 0 76104064Sphk#define G_SLICE_CONFIG_SET 1 77104064Sphk#define G_SLICE_CONFIG_FORCE 2 78107522Sphkstruct g_geom * g_slice_new(struct g_class *mp, u_int slices, struct g_provider *pp, struct g_consumer **cpp, void *extrap, int extra, g_slice_start_t *start); 7992108Sphk 80113713Sphkint g_slice_conf_hot(struct g_geom *gp, u_int idx, off_t offset, off_t length, int ract, int dact, int wact); 81113713Sphk#define G_SLICE_HOT_ALLOW 1 82113713Sphk#define G_SLICE_HOT_DENY 2 83113713Sphk#define G_SLICE_HOT_START 4 84113713Sphk#define G_SLICE_HOT_CALL 8 85113713Sphk 86115506Sphkint g_slice_destroy_geom(struct gctl_req *req, struct g_class *mp, struct g_geom *gp); 87115506Sphk 88107522Sphkvoid g_slice_finish_hot(struct bio *bp); 89107522Sphk 90104064Sphk#endif /* _GEOM_GEOM_SLICE_H_ */ 91