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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_TXG_IMPL_H 28 #define _SYS_TXG_IMPL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/spa.h> 33 #include <sys/txg.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 struct tx_cpu { 40 kmutex_t tc_lock; 41 kcondvar_t tc_cv[TXG_SIZE]; 42 uint64_t tc_count[TXG_SIZE]; 43 char tc_pad[16]; 44 }; 45 46 typedef struct tx_state { 47 tx_cpu_t *tx_cpu; /* protects right to enter txg */ 48 kmutex_t tx_sync_lock; /* protects tx_state_t */ 49 krwlock_t tx_suspend; 50 uint64_t tx_open_txg; /* currently open txg id */ 51 uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */ 52 uint64_t tx_syncing_txg; /* currently syncing txg id */ 53 uint64_t tx_synced_txg; /* last synced txg id */ 54 55 uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */ 56 uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */ 57 58 kcondvar_t tx_sync_more_cv; 59 kcondvar_t tx_sync_done_cv; 60 kcondvar_t tx_quiesce_more_cv; 61 kcondvar_t tx_quiesce_done_cv; 62 kcondvar_t tx_timeout_exit_cv; 63 kcondvar_t tx_exit_cv; /* wait for all threads to exit */ 64 65 uint8_t tx_threads; /* number of threads */ 66 uint8_t tx_exiting; /* set when we're exiting */ 67 68 kthread_t *tx_sync_thread; 69 kthread_t *tx_quiesce_thread; 70 kthread_t *tx_timelimit_thread; 71 } tx_state_t; 72 73 #ifdef __cplusplus 74 } 75 #endif 76 77 #endif /* _SYS_TXG_IMPL_H */ 78