summaryrefslogtreecommitdiff
path: root/usr/src/uts/common/sys/pciev.h
blob: 89b6b1dfa753a2a7e6c91cedd16442a54d806f56 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef	_SYS_PCIEV_H
#define	_SYS_PCIEV_H

#ifdef	__cplusplus
extern "C" {
#endif

typedef struct pcie_eh_data {
	uint16_t minor_ver;	/* Minor data packet version, added data */
	uint16_t major_ver;	/* Major data packet version, struct change */
	uint16_t pci_err_status;	/* pci status register */
	uint16_t pci_bdg_sec_stat;	/* PCI secondary status reg */
	uint32_t pcix_status;		/* pcix status register */
	uint16_t pcix_bdg_sec_stat;	/* pcix bridge secondary status reg */
	uint32_t pcix_bdg_stat;		/* pcix bridge status reg */
	uint16_t pcix_ecc_control_0;	/* pcix ecc control status reg */
	uint16_t pcix_ecc_status_0;	/* pcix ecc control status reg */
	uint32_t pcix_ecc_fst_addr_0;	/* pcix ecc first address reg */
	uint32_t pcix_ecc_sec_addr_0;	/* pcix ecc second address reg */
	uint32_t pcix_ecc_attr_0;	/* pcix ecc attributes reg */
	uint16_t pcix_ecc_control_1;	/* pcix ecc control status reg */
	uint16_t pcix_ecc_status_1;	/* pcix ecc control status reg */
	uint32_t pcix_ecc_fst_addr_1;	/* pcix ecc first address reg */
	uint32_t pcix_ecc_sec_addr_1;	/* pcix ecc second address reg */
	uint32_t pcix_ecc_attr_1;	/* pcix ecc attributes reg */
	uint16_t pcie_err_status;	/* pcie device status register */
	uint32_t pcie_ue_status;	/* pcie ue error status reg */
	uint32_t pcie_ue_hdr[4];	/* pcie ue header log */
	uint32_t pcie_ce_status;	/* pcie ce error status reg */
	uint32_t pcie_sue_status;	/* pcie bridge secondary ue status */
	uint32_t pcie_sue_hdr[4];	/* pcie bridge secondary ue hdr log */
	uint16_t pcie_rp_ctl;		/* root port control register */
	uint32_t pcie_rp_err_status;	/* pcie root port error status reg */
	uint32_t pcie_rp_err_cmd;	/* pcie root port error cmd reg */
	uint16_t pcie_rp_ce_src_id;	/* pcie root port ce sourpe id */
	uint16_t pcie_rp_ue_src_id;	/* pcie root port ue sourpe id */
} pcie_eh_data_t;

typedef struct pcie_domains {
	uint_t domain_id;
	uint_t cached_count;	/* Reference Count of cached dom id list */
	uint_t faulty_count;	/* Reference Count of faulty dom id list */
	struct pcie_domains *cached_next; /* Next on cached dom id list */
	struct pcie_domains *faulty_prev; /* Prev on faulty dom id list */
	struct pcie_domains *faulty_next; /* Next on faulty dom id list */
} pcie_domains_t;

typedef struct pcie_req_id_list {
	pcie_req_id_t		bdf;
	struct pcie_req_id_list	*next;
} pcie_req_id_list_t;

typedef struct pcie_child_domains {
	pcie_domains_t *ids;
	pcie_req_id_list_t *bdfs;
} pcie_child_domains_t;

/*
 * IOV data structure:
 * This data strucutre is now statically allocated during bus_p
 * initializing time. Do we need to have this data structure for
 * non-root domains? If not, is there a way to differentiate root
 * domain and non-root domain so that we do the initialization for
 * root domain only?
 */
typedef struct pcie_domain {
	/*
	 * Bridges:
	 * Cache the domain/channel id and bdfs of all it's children.
	 *
	 * Leaves:
	 * Cache just the domain/channel id of self.
	 * Bridges will contain 0 <= N <= NumChild
	 *
	 * Note:
	 * there is no lock to protect the access to
	 * pcie_domains_t data struture. Currently we don't see
	 * the need for lock. But we need to pay attention if there
	 * might be issues when hotplug is enabled.
	 */
	union {
		pcie_child_domains_t ids;
		pcie_domains_t id;
	} domain;

	/*
	 * Reference count of the domain type for this device and it's children.
	 * For leaf devices, fmadom + nfma + root = 1
	 * For bridges, the sum of the counts = number of LEAF children.
	 *
	 * All devices start with a count of 1 for either nfmadom or rootdom.
	 */
	uint_t		fmadom_count;	/* FMA channel capable domain */
	uint_t		nfmadom_count;	/* Non-FMA channel domain */
	uint_t		rootdom_count;	/* Root domain */

	/* flag if the affected dev will cause guest domains to panic */
	boolean_t	nfma_panic;
} pcie_domain_t;

extern void pcie_domain_list_add(uint_t, pcie_domains_t **);
extern void pcie_domain_list_remove(uint_t, pcie_domains_t *);
extern void pcie_save_domain_id(pcie_domains_t *);
extern void pcie_init_dom(dev_info_t *);
extern void pcie_fini_dom(dev_info_t *);

#define	PCIE_ASSIGNED_TO_FMA_DOM(bus_p)	\
	(!PCIE_IS_BDG(bus_p) && PCIE_BUS2DOM(bus_p)->fmadom_count > 0)
#define	PCIE_ASSIGNED_TO_NFMA_DOM(bus_p)	\
	(!PCIE_IS_BDG(bus_p) && PCIE_BUS2DOM(bus_p)->nfmadom_count > 0)
#define	PCIE_ASSIGNED_TO_ROOT_DOM(bus_p)			\
	(PCIE_IS_BDG(bus_p) || PCIE_BUS2DOM(bus_p)->rootdom_count > 0)
#define	PCIE_BDG_HAS_CHILDREN_FMA_DOM(bus_p)			\
	(PCIE_IS_BDG(bus_p) && PCIE_BUS2DOM(bus_p)->fmadom_count > 0)
#define	PCIE_BDG_HAS_CHILDREN_NFMA_DOM(bus_p)			\
	(PCIE_IS_BDG(bus_p) && PCIE_BUS2DOM(bus_p)->nfmadom_count > 0)
#define	PCIE_BDG_HAS_CHILDREN_ROOT_DOM(bus_p)			\
	(PCIE_IS_BDG(bus_p) && PCIE_BUS2DOM(bus_p)->rootdom_count > 0)
#define	PCIE_IS_ASSIGNED(bus_p)	\
	(!PCIE_ASSIGNED_TO_ROOT_DOM(bus_p))
#define	PCIE_BDG_IS_UNASSIGNED(bus_p)	\
	(PCIE_IS_BDG(bus_p) &&		\
	(!PCIE_BDG_HAS_CHILDREN_NFMA_DOM(bus_p)) &&	\
	(!PCIE_BDG_HAS_CHILDREN_FMA_DOM(bus_p)))


#define	PCIE_IN_DOMAIN(bus_p, id) (pcie_in_domain((bus_p), (id)))

/* Following macros are only valid for leaf devices */
#define	PCIE_DOMAIN_ID_GET(bus_p) \
	((uint_t)(PCIE_IS_ASSIGNED(bus_p)			\
	    ? PCIE_BUS2DOM(bus_p)->domain.id.domain_id : NULL))
#define	PCIE_DOMAIN_ID_SET(bus_p, new_id) \
	if (!PCIE_IS_BDG(bus_p)) \
		PCIE_BUS2DOM(bus_p)->domain.id.domain_id = (uint_t)(new_id)
#define	PCIE_DOMAIN_ID_INCR_REF_COUNT(bus_p)	\
	if (!PCIE_IS_BDG(bus_p))	\
		PCIE_BUS2DOM(bus_p)->domain.id.cached_count = 1;
#define	PCIE_DOMAIN_ID_DECR_REF_COUNT(bus_p)	\
	if (!PCIE_IS_BDG(bus_p))	\
		PCIE_BUS2DOM(bus_p)->domain.id.cached_count = 0;

/* Following macros are only valid for bridges */
#define	PCIE_DOMAIN_LIST_GET(bus_p) \
	((pcie_domains_t *)(PCIE_IS_BDG(bus_p) ?	\
	    PCIE_BUS2DOM(bus_p)->domain.ids.ids : NULL))
#define	PCIE_DOMAIN_LIST_ADD(bus_p, domain_id) \
	if (PCIE_IS_BDG(bus_p)) \
	    pcie_domain_list_add(domain_id, \
		&PCIE_BUS2DOM(bus_p)->domain.ids.ids)
#define	PCIE_DOMAIN_LIST_REMOVE(bus_p, domain_id) \
	if (PCIE_IS_BDG(bus_p)) \
	    pcie_domain_list_remove(domain_id, \
		PCIE_BUS2DOM(bus_p)->domain.ids.ids)

#define	PCIE_BDF_LIST_GET(bus_p) \
	((pcie_req_id_list_t *)(PCIE_IS_BDG(bus_p) ? \
	    PCIE_BUS2DOM(bus_p)->domain.ids.bdfs : NULL))
#define	PCIE_BDF_LIST_ADD(bus_p, bdf) \
	if (PCIE_IS_BDG(bus_p)) \
		pcie_bdf_list_add(bdf, &PCIE_BUS2DOM(bus_p)->domain.ids.bdfs)
#define	PCIE_BDF_LIST_REMOVE(bus_p, bdf) \
	if (PCIE_IS_BDG(bus_p)) \
		pcie_bdf_list_remove(bdf, &PCIE_BUS2DOM(bus_p)->domain.ids.bdfs)

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_PCIEV_H */