xref: /titanic_44/usr/src/uts/common/sys/ddifm_impl.h (revision 8eea8e29cc4374d1ee24c25a07f45af132db3499)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_DDIFM_IMPL_H
28 #define	_DDIFM_IMPL_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/dditypes.h>
33 #include <sys/errorq.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 struct i_ddi_fmkstat {
40 	kstat_named_t	fek_erpt_dropped;	/* total ereports dropped */
41 	kstat_named_t	fek_fmc_full;		/* total fmc insert fails */
42 	kstat_named_t	fek_fmc_grew;		/* total fmc grew succeed */
43 	kstat_named_t	fek_acc_err;		/* total access errors */
44 	kstat_named_t	fek_dma_err;		/* total dma errors */
45 };
46 
47 /* Fault management error handler support */
48 
49 #define	DDI_MAX_ERPT_CLASS	64
50 #define	DDI_FM_STKDEPTH		20
51 #define	DDI_FM_SYM_SZ		64
52 
53 struct i_ddi_errhdl {
54 	int (*eh_func)();	/* error handler callback */
55 	void *eh_impl;		/* callback arg */
56 };
57 
58 /* Fault management resource cache support */
59 
60 struct i_ddi_fmc_entry {
61 	struct i_ddi_fmc_entry *fce_prev;
62 	struct i_ddi_fmc_entry *fce_next;
63 	void *fce_resource;		/* acc or DMA handle cached */
64 	void *fce_bus_specific;		/* Bus-specific handle data */
65 };
66 
67 struct i_ddi_fmc {
68 	kmutex_t fc_lock;			/* exclusive cache 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 	struct i_ddi_fmc *fh_dma_cache;	/* fm dma handle cache */
86 	struct i_ddi_fmc *fh_acc_cache;	/* fm access handle cache */
87 	dev_info_t *fh_dip;
88 	kstat_t *fh_ksp;		/* pointer to installed kstat */
89 	int fh_cap;			/* fm level for this instance */
90 	struct i_ddi_fmkstat fh_kstat;	/* fm kstats for this inst */
91 	errorq_t *fh_errorq;		/* errorq for this instance */
92 	nvlist_t *fh_fmri;		/* optional fmri */
93 	ddi_iblock_cookie_t fh_ibc;	/* ibc for error handling */
94 	struct i_ddi_fmtgt *fh_tgts;	/* registered fm tgts */
95 	void *fh_bus_specific;		/* Bus specific FM info */
96 };
97 
98 typedef struct pci_fm_err {
99 	char *err_class;
100 	uint16_t reg_bit;
101 	char *terr_class;
102 } pci_fm_err_t;
103 
104 extern pci_fm_err_t pci_err_tbl[];
105 
106 #ifdef _KERNEL
107 
108 /* driver defect error reporting */
109 void i_ddi_drv_ereport_post(dev_info_t *, const char *, nvlist_t *, int);
110 
111 /* target error handler add/remove/dispatch */
112 extern void i_ddi_fm_handler_enter(dev_info_t *);
113 extern void i_ddi_fm_handler_exit(dev_info_t *);
114 
115 /* access and dma handle protection support */
116 extern void i_ddi_fm_acc_err_set(ddi_acc_handle_t, uint64_t, int, int);
117 extern void i_ddi_fm_dma_err_set(ddi_dma_handle_t, uint64_t, int, int);
118 
119 /* fm busop support */
120 extern void i_ndi_busop_access_enter(dev_info_t *, ddi_acc_handle_t);
121 extern void i_ndi_busop_access_exit(dev_info_t *, ddi_acc_handle_t);
122 extern int i_ndi_busop_fm_init(dev_info_t *, int, ddi_iblock_cookie_t *);
123 extern void i_ndi_busop_fm_fini(dev_info_t *);
124 
125 /* fm cache support */
126 void i_ndi_fmc_create(struct i_ddi_fmc **, int, ddi_iblock_cookie_t);
127 void i_ndi_fmc_destroy(struct i_ddi_fmc *);
128 
129 #endif /* _KERNEL */
130 
131 #ifdef	__cplusplus
132 }
133 #endif
134 
135 #endif	/* _DDIFM_IMPL_H */
136