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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _ERRORQ_IMPL_H 27 #define _ERRORQ_IMPL_H 28 29 #include <sys/errorq.h> 30 #include <sys/dditypes.h> 31 #include <sys/kstat.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 typedef struct errorq_nvelem { 38 void *eqn_buf; /* data buf for this nv element */ 39 nvlist_t *eqn_nvl; /* nvlist */ 40 nv_alloc_t *eqn_nva; /* fixed nv allocator */ 41 } errorq_nvelem_t; 42 43 struct errorq_elem { 44 struct errorq_elem *eqe_next; /* next on processing list */ 45 struct errorq_elem *eqe_prev; /* prev on free or pend list */ 46 struct errorq_elem *eqe_dump; /* next on crash dump list */ 47 void *eqe_data; /* data for this element */ 48 }; 49 50 typedef struct errorq_kstat { 51 kstat_named_t eqk_dispatched; /* total errors dispatched */ 52 kstat_named_t eqk_dropped; /* total errors dropped */ 53 kstat_named_t eqk_logged; /* total errors logged */ 54 kstat_named_t eqk_reserved; /* total errors reserved */ 55 kstat_named_t eqk_reserve_fail; /* total reservation failures */ 56 kstat_named_t eqk_committed; /* total errors committed */ 57 kstat_named_t eqk_commit_fail; /* total commit failures */ 58 kstat_named_t eqk_cancelled; /* total reserves cancelled */ 59 } errorq_kstat_t; 60 61 /* 62 * errorq implementation flags: bit range 16-31 63 */ 64 #define ERRORQ_ACTIVE 0x00010000 /* queue is enabled */ 65 #define ERRORQ_NVLIST 0x00020000 /* nvlist queue */ 66 67 #define ERRORQ_NAMELEN 31 /* length of queue name */ 68 69 struct errorq { 70 char eq_name[ERRORQ_NAMELEN + 1]; /* string name for debugging */ 71 errorq_kstat_t eq_kstat; /* kstat data (see above) */ 72 kstat_t *eq_ksp; /* pointer to installed kstat */ 73 errorq_func_t eq_func; /* drain callback */ 74 void *eq_private; /* drain callback data */ 75 void *eq_data; /* buffer of queue data */ 76 ulong_t eq_qlen; /* maximum queue length */ 77 size_t eq_size; /* size of element data */ 78 uint_t eq_ipl; /* soft interrupt priority */ 79 uint_t eq_flags; /* flags (see above) */ 80 ddi_softintr_t eq_id; /* soft interrupt identifier */ 81 kmutex_t eq_lock; /* consumer lock */ 82 errorq_elem_t *eq_elems; /* array of all elements */ 83 errorq_elem_t *eq_phead; /* head of processing list */ 84 errorq_elem_t *eq_ptail; /* tail of processing list */ 85 errorq_elem_t *eq_pend; /* list of pending errors */ 86 ulong_t *eq_bitmap; /* bitmap of free elements */ 87 errorq_elem_t *eq_dump; /* list of crash dump elem's */ 88 struct errorq *eq_next; /* next errorq on global list */ 89 index_t eq_rotor; /* best efforts bitmap rotor */ 90 }; 91 92 #ifdef __cplusplus 93 } 94 #endif 95 96 #endif /* _ERRORQ_IMPL_H */ 97