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 _DDIFM_IMPL_H 27#define _DDIFM_IMPL_H 28 29#include <sys/dditypes.h> 30#include <sys/errorq.h> 31 32#ifdef __cplusplus 33extern "C" { 34#endif 35 36struct i_ddi_fmkstat { 37 kstat_named_t fek_erpt_dropped; /* total ereports dropped */ 38 kstat_named_t fek_fmc_miss; /* total fmc misses */ 39 kstat_named_t fek_fmc_full; /* total fmc allocs fail */ 40 kstat_named_t fek_acc_err; /* total access errors */ 41 kstat_named_t fek_dma_err; /* total dma errors */ 42}; 43 44/* Fault management error handler support */ 45 46#define DDI_MAX_ERPT_CLASS 64 47#define DDI_FM_STKDEPTH 20 48#define DDI_FM_SYM_SZ 64 49 50struct i_ddi_errhdl { 51 int (*eh_func)(); /* error handler callback */ 52 void *eh_impl; /* callback arg */ 53}; 54 55/* Fault management resource cache support */ 56 57struct i_ddi_fmc_entry { 58 struct i_ddi_fmc_entry *fce_prev; 59 struct i_ddi_fmc_entry *fce_next; 60 void *fce_resource; /* acc or DMA handle cached */ 61 void *fce_bus_specific; /* Bus-specific handle data */ 62}; 63 64struct i_ddi_fmc { 65 kmutex_t fc_lock; /* cache active access */ 66 struct i_ddi_fmc_entry *fc_head; /* active handle list */ 67 struct i_ddi_fmc_entry *fc_tail; /* tail of active handle list */ 68}; 69 70/* Error handler targets */ 71struct i_ddi_fmtgt { 72 struct i_ddi_fmtgt *ft_next; /* next fm child target */ 73 dev_info_t *ft_dip; /* fm target error handler dip */ 74 struct i_ddi_errhdl *ft_errhdl; /* error handler */ 75}; 76 77struct i_ddi_fmhdl { 78 kmutex_t fh_lock; /* error handler lock */ 79 kthread_t *fh_lock_owner; 80 struct i_ddi_fmc *fh_dma_cache; /* fm dma handle cache */ 81 struct i_ddi_fmc *fh_acc_cache; /* fm access handle cache */ 82 dev_info_t *fh_dip; 83 kstat_t *fh_ksp; /* pointer to installed kstat */ 84 int fh_cap; /* fm level for this instance */ 85 struct i_ddi_fmkstat fh_kstat; /* fm kstats for this inst */ 86 errorq_t *fh_errorq; /* errorq for this instance */ 87 nvlist_t *fh_fmri; /* optional fmri */ 88 ddi_iblock_cookie_t fh_ibc; /* ibc for error handling */ 89 struct i_ddi_fmtgt *fh_tgts; /* registered fm tgts */ 90 void *fh_bus_specific; /* Bus specific FM info */ 91}; 92 93typedef struct pci_fm_err { 94 char *err_class; 95 uint32_t reg_bit; 96 char *terr_class; 97 int flags; 98} pci_fm_err_t; 99 100extern pci_fm_err_t pci_err_tbl[]; 101 102#ifdef _KERNEL 103typedef int (*ddi_fmcompare_t)(dev_info_t *, const void *, const void *, 104 const void *); 105 106extern void ndi_fm_init(void); 107 108/* driver defect error reporting */ 109extern void i_ddi_drv_ereport_post(dev_info_t *, const char *, nvlist_t *, int); 110 111/* target error handler add/remove/dispatch */ 112extern void i_ddi_fm_handler_enter(dev_info_t *); 113extern void i_ddi_fm_handler_exit(dev_info_t *); 114extern boolean_t i_ddi_fm_handler_owned(dev_info_t *); 115 116/* access and dma handle protection support */ 117extern void i_ddi_fm_acc_err_set(ddi_acc_handle_t, uint64_t, int, int); 118extern void i_ddi_fm_dma_err_set(ddi_dma_handle_t, uint64_t, int, int); 119extern ddi_fmcompare_t i_ddi_fm_acc_err_cf_get(ddi_acc_handle_t); 120extern ddi_fmcompare_t i_ddi_fm_dma_err_cf_get(ddi_dma_handle_t); 121 122/* fm busop support */ 123extern void i_ndi_busop_access_enter(dev_info_t *, ddi_acc_handle_t); 124extern void i_ndi_busop_access_exit(dev_info_t *, ddi_acc_handle_t); 125extern int i_ndi_busop_fm_init(dev_info_t *, int, ddi_iblock_cookie_t *); 126extern void i_ndi_busop_fm_fini(dev_info_t *); 127 128/* fm cache support */ 129void i_ndi_fmc_create(struct i_ddi_fmc **, int, ddi_iblock_cookie_t); 130void i_ndi_fmc_destroy(struct i_ddi_fmc *); 131 132#endif /* _KERNEL */ 133 134#ifdef __cplusplus 135} 136#endif 137 138#endif /* _DDIFM_IMPL_H */ 139