12676Seschrock /* 22676Seschrock * CDDL HEADER START 32676Seschrock * 42676Seschrock * The contents of this file are subject to the terms of the 52676Seschrock * Common Development and Distribution License (the "License"). 62676Seschrock * You may not use this file except in compliance with the License. 72676Seschrock * 82676Seschrock * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 92676Seschrock * or http://www.opensolaris.org/os/licensing. 102676Seschrock * See the License for the specific language governing permissions 112676Seschrock * and limitations under the License. 122676Seschrock * 132676Seschrock * When distributing Covered Code, include this CDDL HEADER in each 142676Seschrock * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 152676Seschrock * If applicable, add the following below this CDDL HEADER, with the 162676Seschrock * fields enclosed by brackets "[]" replaced with your own identifying 172676Seschrock * information: Portions Copyright [yyyy] [name of copyright owner] 182676Seschrock * 192676Seschrock * CDDL HEADER END 202676Seschrock */ 212676Seschrock 222676Seschrock /* 23*12314SJames.Moore@Sun.COM * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. 242676Seschrock */ 252676Seschrock 262676Seschrock #ifndef _SYS_ZVOL_H 272676Seschrock #define _SYS_ZVOL_H 282676Seschrock 292676Seschrock #include <sys/zfs_context.h> 302676Seschrock 312676Seschrock #ifdef __cplusplus 322676Seschrock extern "C" { 332676Seschrock #endif 342676Seschrock 356423Sgw25295 #define ZVOL_OBJ 1ULL 366423Sgw25295 #define ZVOL_ZAP_OBJ 2ULL 376423Sgw25295 382676Seschrock #ifdef _KERNEL 392676Seschrock extern int zvol_check_volsize(uint64_t volsize, uint64_t blocksize); 402676Seschrock extern int zvol_check_volblocksize(uint64_t volblocksize); 412885Sahrens extern int zvol_get_stats(objset_t *os, nvlist_t *nv); 424543Smarks extern void zvol_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); 4310588SEric.Taylor@Sun.COM extern int zvol_create_minor(const char *); 442676Seschrock extern int zvol_remove_minor(const char *); 4510588SEric.Taylor@Sun.COM extern void zvol_remove_minors(const char *); 464787Sahrens extern int zvol_set_volsize(const char *, major_t, uint64_t); 472676Seschrock 482676Seschrock extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr); 496423Sgw25295 extern int zvol_dump(dev_t dev, caddr_t addr, daddr_t offset, int nblocks); 502676Seschrock extern int zvol_close(dev_t dev, int flag, int otyp, cred_t *cr); 512676Seschrock extern int zvol_strategy(buf_t *bp); 522676Seschrock extern int zvol_read(dev_t dev, uio_t *uiop, cred_t *cr); 532676Seschrock extern int zvol_write(dev_t dev, uio_t *uiop, cred_t *cr); 542676Seschrock extern int zvol_aread(dev_t dev, struct aio_req *aio, cred_t *cr); 552676Seschrock extern int zvol_awrite(dev_t dev, struct aio_req *aio, cred_t *cr); 562676Seschrock extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, 572676Seschrock int *rvalp); 582676Seschrock extern int zvol_busy(void); 592676Seschrock extern void zvol_init(void); 602676Seschrock extern void zvol_fini(void); 61*12314SJames.Moore@Sun.COM 62*12314SJames.Moore@Sun.COM extern int zvol_get_volume_params(minor_t minor, uint64_t *blksize, 63*12314SJames.Moore@Sun.COM uint64_t *max_xfer_len, void **minor_hdl, void **objset_hdl, void **zil_hdl, 64*12314SJames.Moore@Sun.COM void **rl_hdl, void **bonus_hdl); 65*12314SJames.Moore@Sun.COM extern uint64_t zvol_get_volume_size(void *minor_hdl); 66*12314SJames.Moore@Sun.COM extern int zvol_get_volume_wce(void *minor_hdl); 67*12314SJames.Moore@Sun.COM extern void zvol_log_write_minor(void *minor_hdl, dmu_tx_t *tx, offset_t off, 68*12314SJames.Moore@Sun.COM ssize_t resid, boolean_t sync); 69*12314SJames.Moore@Sun.COM 702676Seschrock #endif 712676Seschrock 722676Seschrock #ifdef __cplusplus 732676Seschrock } 742676Seschrock #endif 752676Seschrock 762676Seschrock #endif /* _SYS_ZVOL_H */ 77