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 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/dditypes.h> 32 #include <sys/errorq.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 struct i_ddi_fmkstat { 39 kstat_named_t fek_erpt_dropped; /* total ereports dropped */ 40 kstat_named_t fek_fmc_full; /* total fmc insert fails */ 41 kstat_named_t fek_fmc_grew; /* total fmc grew succeed */ 42 kstat_named_t fek_acc_err; /* total access errors */ 43 kstat_named_t fek_dma_err; /* total dma errors */ 44 }; 45 46 /* Fault management error handler support */ 47 48 #define DDI_MAX_ERPT_CLASS 64 49 #define DDI_FM_STKDEPTH 20 50 #define DDI_FM_SYM_SZ 64 51 52 struct i_ddi_errhdl { 53 int (*eh_func)(); /* error handler callback */ 54 void *eh_impl; /* callback arg */ 55 }; 56 57 /* Fault management resource cache support */ 58 59 struct i_ddi_fmc_entry { 60 struct i_ddi_fmc_entry *fce_prev; 61 struct i_ddi_fmc_entry *fce_next; 62 void *fce_resource; /* acc or DMA handle cached */ 63 void *fce_bus_specific; /* Bus-specific handle data */ 64 }; 65 66 struct i_ddi_fmc { 67 kmutex_t fc_lock; /* cache active access */ 68 kmutex_t fc_free_lock; /* cache freelist access */ 69 int fc_len; /* length of FM cache array */ 70 struct i_ddi_fmc_entry *fc_elems; /* FM cache array */ 71 struct i_ddi_fmc_entry *fc_free; /* free list */ 72 struct i_ddi_fmc_entry *fc_tail; /* tail of active handle list */ 73 struct i_ddi_fmc_entry *fc_active; /* active handle list */ 74 }; 75 76 /* Error handler targets */ 77 struct i_ddi_fmtgt { 78 struct i_ddi_fmtgt *ft_next; /* next fm child target */ 79 dev_info_t *ft_dip; /* fm target error handler dip */ 80 struct i_ddi_errhdl *ft_errhdl; /* error handler */ 81 }; 82 83 struct i_ddi_fmhdl { 84 kmutex_t fh_lock; /* error handler lock */ 85 kthread_t *fh_lock_owner; 86 struct i_ddi_fmc *fh_dma_cache; /* fm dma handle cache */ 87 struct i_ddi_fmc *fh_acc_cache; /* fm access handle cache */ 88 dev_info_t *fh_dip; 89 kstat_t *fh_ksp; /* pointer to installed kstat */ 90 int fh_cap; /* fm level for this instance */ 91 struct i_ddi_fmkstat fh_kstat; /* fm kstats for this inst */ 92 errorq_t *fh_errorq; /* errorq for this instance */ 93 nvlist_t *fh_fmri; /* optional fmri */ 94 ddi_iblock_cookie_t fh_ibc; /* ibc for error handling */ 95 struct i_ddi_fmtgt *fh_tgts; /* registered fm tgts */ 96 void *fh_bus_specific; /* Bus specific FM info */ 97 }; 98 99 typedef struct pci_fm_err { 100 char *err_class; 101 uint32_t reg_bit; 102 char *terr_class; 103 int flags; 104 } pci_fm_err_t; 105 106 extern pci_fm_err_t pci_err_tbl[]; 107 108 #ifdef _KERNEL 109 typedef int (*ddi_fmcompare_t)(dev_info_t *, const void *, const void *, 110 const void *); 111 112 /* driver defect error reporting */ 113 void i_ddi_drv_ereport_post(dev_info_t *, const char *, nvlist_t *, int); 114 115 /* target error handler add/remove/dispatch */ 116 extern void i_ddi_fm_handler_enter(dev_info_t *); 117 extern void i_ddi_fm_handler_exit(dev_info_t *); 118 extern boolean_t i_ddi_fm_handler_owned(dev_info_t *); 119 120 /* access and dma handle protection support */ 121 extern void i_ddi_fm_acc_err_set(ddi_acc_handle_t, uint64_t, int, int); 122 extern void i_ddi_fm_dma_err_set(ddi_dma_handle_t, uint64_t, int, int); 123 extern ddi_fmcompare_t i_ddi_fm_acc_err_cf_get(ddi_acc_handle_t); 124 extern ddi_fmcompare_t i_ddi_fm_dma_err_cf_get(ddi_dma_handle_t); 125 126 /* fm busop support */ 127 extern void i_ndi_busop_access_enter(dev_info_t *, ddi_acc_handle_t); 128 extern void i_ndi_busop_access_exit(dev_info_t *, ddi_acc_handle_t); 129 extern int i_ndi_busop_fm_init(dev_info_t *, int, ddi_iblock_cookie_t *); 130 extern void i_ndi_busop_fm_fini(dev_info_t *); 131 132 /* fm cache support */ 133 void i_ndi_fmc_create(struct i_ddi_fmc **, int, ddi_iblock_cookie_t); 134 void i_ndi_fmc_destroy(struct i_ddi_fmc *); 135 136 #endif /* _KERNEL */ 137 138 #ifdef __cplusplus 139 } 140 #endif 141 142 #endif /* _DDIFM_IMPL_H */ 143