1 /* $NetBSD: rf_callback.c,v 1.25 2021/07/23 00:54:45 oster Exp $ */
2 /*
3 * Copyright (c) 1995 Carnegie-Mellon University.
4 * All rights reserved.
5 *
6 * Author: Jim Zelenka
7 *
8 * Permission to use, copy, modify and distribute this software and
9 * its documentation is hereby granted, provided that both the copyright
10 * notice and this permission notice appear in all copies of the
11 * software, derivative works or modified versions, and any portions
12 * thereof, and that both notices appear in supporting documentation.
13 *
14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
17 *
18 * Carnegie Mellon requests users of this software to return to
19 *
20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
21 * School of Computer Science
22 * Carnegie Mellon University
23 * Pittsburgh PA 15213-3890
24 *
25 * any improvements or extensions that they make and grant Carnegie the
26 * rights to redistribute these changes.
27 */
28
29 /*****************************************************************************
30 *
31 * callback.c -- code to manipulate callback descriptor
32 *
33 ****************************************************************************/
34
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: rf_callback.c,v 1.25 2021/07/23 00:54:45 oster Exp $");
38
39 #include <dev/raidframe/raidframevar.h>
40 #include <sys/pool.h>
41
42 #include "rf_archs.h"
43 #include "rf_threadstuff.h"
44 #include "rf_callback.h"
45 #include "rf_debugMem.h"
46 #include "rf_general.h"
47 #include "rf_shutdown.h"
48 #include "rf_netbsd.h"
49 #include "rf_raid.h"
50
51 #define RF_MAX_FREE_CALLBACK 64
52 #define RF_MIN_FREE_CALLBACK 32
53
54 static void rf_ShutdownCallback(void *);
55 static void
rf_ShutdownCallback(void * arg)56 rf_ShutdownCallback(void *arg)
57 {
58 RF_Raid_t *raidPtr;
59
60 raidPtr = (RF_Raid_t *) arg;
61
62 pool_destroy(&raidPtr->pools.callbackf);
63 pool_destroy(&raidPtr->pools.callbackv);
64 }
65
66 int
rf_ConfigureCallback(RF_ShutdownList_t ** listp,RF_Raid_t * raidPtr,RF_Config_t * cfgPtr)67 rf_ConfigureCallback(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr,
68 RF_Config_t *cfgPtr)
69 {
70
71 rf_pool_init(raidPtr, raidPtr->poolNames.callbackf, &raidPtr->pools.callbackf, sizeof(RF_CallbackFuncDesc_t),
72 "callbackf", RF_MIN_FREE_CALLBACK, RF_MAX_FREE_CALLBACK);
73 rf_pool_init(raidPtr, raidPtr->poolNames.callbackv, &raidPtr->pools.callbackv, sizeof(RF_CallbackValueDesc_t),
74 "callbackv", RF_MIN_FREE_CALLBACK, RF_MAX_FREE_CALLBACK);
75 rf_ShutdownCreate(listp, rf_ShutdownCallback, raidPtr);
76
77 return (0);
78 }
79
80 RF_CallbackFuncDesc_t *
rf_AllocCallbackFuncDesc(RF_Raid_t * raidPtr)81 rf_AllocCallbackFuncDesc(RF_Raid_t *raidPtr)
82 {
83 return pool_get(&raidPtr->pools.callbackf, PR_WAITOK);
84 }
85
86 void
rf_FreeCallbackFuncDesc(RF_Raid_t * raidPtr,RF_CallbackFuncDesc_t * p)87 rf_FreeCallbackFuncDesc(RF_Raid_t *raidPtr, RF_CallbackFuncDesc_t *p)
88 {
89 pool_put(&raidPtr->pools.callbackf, p);
90 }
91
92 RF_CallbackValueDesc_t *
rf_AllocCallbackValueDesc(RF_Raid_t * raidPtr)93 rf_AllocCallbackValueDesc(RF_Raid_t *raidPtr)
94 {
95 return pool_get(&raidPtr->pools.callbackv, PR_WAITOK);
96 }
97
98 void
rf_FreeCallbackValueDesc(RF_Raid_t * raidPtr,RF_CallbackValueDesc_t * p)99 rf_FreeCallbackValueDesc(RF_Raid_t *raidPtr, RF_CallbackValueDesc_t *p)
100 {
101 pool_put(&raidPtr->pools.callbackv, p);
102 }
103