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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 _SYS_TXG_IMPL_H | |
27 | #define _SYS_TXG_IMPL_H | |
28 | ||
34dc7c2f BB |
29 | #include <sys/spa.h> |
30 | #include <sys/txg.h> | |
31 | ||
32 | #ifdef __cplusplus | |
33 | extern "C" { | |
34 | #endif | |
35 | ||
36 | struct tx_cpu { | |
37 | kmutex_t tc_lock; | |
38 | kcondvar_t tc_cv[TXG_SIZE]; | |
39 | uint64_t tc_count[TXG_SIZE]; | |
40 | char tc_pad[16]; | |
41 | }; | |
42 | ||
43 | typedef struct tx_state { | |
44 | tx_cpu_t *tx_cpu; /* protects right to enter txg */ | |
45 | kmutex_t tx_sync_lock; /* protects tx_state_t */ | |
46 | krwlock_t tx_suspend; | |
47 | uint64_t tx_open_txg; /* currently open txg id */ | |
48 | uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */ | |
49 | uint64_t tx_syncing_txg; /* currently syncing txg id */ | |
50 | uint64_t tx_synced_txg; /* last synced txg id */ | |
51 | ||
52 | uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */ | |
53 | uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */ | |
54 | ||
55 | kcondvar_t tx_sync_more_cv; | |
56 | kcondvar_t tx_sync_done_cv; | |
57 | kcondvar_t tx_quiesce_more_cv; | |
58 | kcondvar_t tx_quiesce_done_cv; | |
59 | kcondvar_t tx_timeout_cv; | |
60 | kcondvar_t tx_exit_cv; /* wait for all threads to exit */ | |
61 | ||
62 | uint8_t tx_threads; /* number of threads */ | |
63 | uint8_t tx_exiting; /* set when we're exiting */ | |
64 | ||
65 | kthread_t *tx_sync_thread; | |
66 | kthread_t *tx_quiesce_thread; | |
34dc7c2f BB |
67 | } tx_state_t; |
68 | ||
69 | #ifdef __cplusplus | |
70 | } | |
71 | #endif | |
72 | ||
73 | #endif /* _SYS_TXG_IMPL_H */ |