1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SD_IO_H 27 #define _SD_IO_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #define SGIO_MAX 254 34 35 #define _SD_IO_NONE 0 36 #define _SD_IO_INITIATE 1 37 #define _SD_IO_DONE 2 38 #define _SD_IO_FAILED 3 39 #define _SD_IO_DISCARDED 4 40 41 #define _SD_WRITER_NONE 0 42 #define _SD_WRITER_CREATE 1 43 #define _SD_WRITER_RUNNING 2 44 45 #ifdef _KERNEL 46 47 extern kcondvar_t _sd_flush_cv; 48 /* secret flush toggle flag for testing */ 49 extern int _sdbc_flush_flag; /* 0 ==> noflushing, 1 ==> flush */ 50 51 52 extern int _sdbc_flush_configure(void); 53 extern void _sdbc_flush_deconfigure(void); 54 extern void _sd_async_flclist(_sd_cctl_t *cclist, dev_t rdev); 55 extern void _sd_enqueue_io_pending(int cd, _sd_cctl_t *cclist); 56 extern void _sd_async_flcent(_sd_cctl_t *cc_ent, dev_t rdev); 57 extern int _sd_process_failure(_sd_cctl_t *cc_ent); 58 extern int cd_writer(int cd); 59 extern void _sd_ccent_rd(_sd_cctl_t *cc_ent, uint_t wanted, buf_t *bp); 60 extern int _sdbc_wait_pending(void); 61 62 #endif /* _KERNEL */ 63 64 #ifdef __cplusplus 65 } 66 #endif 67 68 #endif /* _SD_IO_H */ 69