xref: /illumos-gate/usr/src/uts/common/sys/pcie_impl.h (revision 67dbe2be0c0f1e2eb428b89088bb5667e8f0b9f6)
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	_SYS_PCIE_IMPL_H
27 #define	_SYS_PCIE_IMPL_H
28 
29 #ifdef	__cplusplus
30 extern "C" {
31 #endif
32 
33 #include <sys/pcie.h>
34 
35 #define	PCI_GET_BDF(dip)	\
36 	PCIE_DIP2BUS(dip)->bus_bdf
37 #define	PCI_GET_SEC_BUS(dip)	\
38 	PCIE_DIP2BUS(dip)->bus_bdg_secbus
39 #define	PCI_GET_PCIE2PCI_SECBUS(dip) \
40 	PCIE_DIP2BUS(dip)->bus_bdg_secbus
41 
42 #define	DEVI_PORT_TYPE_PCI \
43 	((PCI_CLASS_BRIDGE << 16) | (PCI_BRIDGE_PCI << 8) | \
44 	PCI_BRIDGE_PCI_IF_PCI2PCI)
45 
46 #define	PCIE_DIP2BUS(dip) \
47 	(ndi_port_type(dip, B_TRUE, DEVI_PORT_TYPE_PCI) ? \
48 	PCIE_DIP2UPBUS(dip) : \
49 	ndi_port_type(dip, B_FALSE, DEVI_PORT_TYPE_PCI) ? \
50 	PCIE_DIP2DOWNBUS(dip) : NULL)
51 
52 #define	PCIE_DIP2UPBUS(dip) \
53 	((pcie_bus_t *)ndi_get_bus_private(dip, B_TRUE))
54 #define	PCIE_DIP2DOWNBUS(dip) \
55 	((pcie_bus_t *)ndi_get_bus_private(dip, B_FALSE))
56 #define	PCIE_DIP2PFD(dip) (PCIE_DIP2BUS(dip))->bus_pfd
57 #define	PCIE_PFD2BUS(pfd_p) pfd_p->pe_bus_p
58 #define	PCIE_PFD2DIP(pfd_p) PCIE_PFD2BUS(pfd_p)->bus_dip
59 #define	PCIE_BUS2DIP(bus_p) bus_p->bus_dip
60 #define	PCIE_BUS2PFD(bus_p) PCIE_DIP2PFD(PCIE_BUS2DIP(bus_p))
61 
62 #define	PCIE_IS_PCIE(bus_p) (bus_p->bus_pcie_off)
63 #define	PCIE_IS_PCIX(bus_p) (bus_p->bus_pcix_off)
64 #define	PCIE_IS_PCI(bus_p) (!PCIE_IS_PCIE(bus_p))
65 #define	PCIE_HAS_AER(bus_p) (bus_p->bus_aer_off)
66 /* IS_ROOT = is RC or RP */
67 #define	PCIE_IS_ROOT(bus_p) (PCIE_IS_RC(bus_p) || PCIE_IS_RP(bus_p))
68 
69 #define	PCIE_IS_HOTPLUG_CAPABLE(dip) \
70 	(PCIE_DIP2BUS(dip)->bus_hp_sup_modes)
71 
72 #define	PCIE_IS_HOTPLUG_ENABLED(dip) \
73 	((PCIE_DIP2BUS(dip)->bus_hp_curr_mode == PCIE_PCI_HP_MODE) || \
74 	(PCIE_DIP2BUS(dip)->bus_hp_curr_mode == PCIE_NATIVE_HP_MODE))
75 
76 /*
77  * This is a pseudo pcie "device type", but it's needed to explain describe
78  * nodes such as PX and NPE, which aren't really PCI devices but do control or
79  * interaction with PCI error handling.
80  */
81 #define	PCIE_IS_RC(bus_p) \
82 	(bus_p->bus_dev_type == PCIE_PCIECAP_DEV_TYPE_RC_PSEUDO)
83 #define	PCIE_IS_RP(bus_p) \
84 	((bus_p->bus_dev_type == PCIE_PCIECAP_DEV_TYPE_ROOT) && \
85 	    PCIE_IS_PCIE(bus_p))
86 #define	PCIE_IS_SWU(bus_p) \
87 	(bus_p->bus_dev_type == PCIE_PCIECAP_DEV_TYPE_UP)
88 #define	PCIE_IS_SWD(bus_p) \
89 	(bus_p->bus_dev_type == PCIE_PCIECAP_DEV_TYPE_DOWN)
90 #define	PCIE_IS_SW(bus_p) \
91 	(PCIE_IS_SWU(bus_p) || PCIE_IS_SWD(bus_p))
92 #define	PCIE_IS_BDG(bus_p)  (bus_p->bus_hdr_type == PCI_HEADER_ONE)
93 #define	PCIE_IS_PCI_BDG(bus_p) (PCIE_IS_PCI(bus_p) && PCIE_IS_BDG(bus_p))
94 #define	PCIE_IS_PCIE_BDG(bus_p) \
95 	(bus_p->bus_dev_type == PCIE_PCIECAP_DEV_TYPE_PCIE2PCI)
96 #define	PCIE_IS_PCI2PCIE(bus_p) \
97 	(bus_p->bus_dev_type == PCIE_PCIECAP_DEV_TYPE_PCI2PCIE)
98 #define	PCIE_IS_PCIE_SEC(bus_p) \
99 	(PCIE_IS_PCIE(bus_p) && PCIE_IS_BDG(bus_p) && !PCIE_IS_PCIE_BDG(bus_p))
100 #define	PCIX_ECC_VERSION_CHECK(bus_p) \
101 	((bus_p->bus_ecc_ver == PCI_PCIX_VER_1) || \
102 	    (bus_p->bus_ecc_ver == PCI_PCIX_VER_2))
103 
104 #define	PCIE_VENID(bus_p)	(bus_p->bus_dev_ven_id & 0xffff)
105 #define	PCIE_DEVID(bus_p)	((bus_p->bus_dev_ven_id >> 16) & 0xffff)
106 
107 /* PCIE Cap/AER shortcuts */
108 #define	PCIE_GET(sz, bus_p, off) \
109 	pci_config_get ## sz(bus_p->bus_cfg_hdl, off)
110 #define	PCIE_PUT(sz, bus_p, off, val) \
111 	pci_config_put ## sz(bus_p->bus_cfg_hdl, off, val)
112 #define	PCIE_CAP_GET(sz, bus_p, off) \
113 	PCI_CAP_GET ## sz(bus_p->bus_cfg_hdl, NULL, bus_p->bus_pcie_off, off)
114 #define	PCIE_CAP_PUT(sz, bus_p, off, val) \
115 	PCI_CAP_PUT ## sz(bus_p->bus_cfg_hdl, NULL, bus_p->bus_pcie_off, off, \
116 	    val)
117 #define	PCIE_AER_GET(sz, bus_p, off) \
118 	PCI_XCAP_GET ## sz(bus_p->bus_cfg_hdl, NULL, bus_p->bus_aer_off, off)
119 #define	PCIE_AER_PUT(sz, bus_p, off, val) \
120 	PCI_XCAP_PUT ## sz(bus_p->bus_cfg_hdl, NULL, bus_p->bus_aer_off, off, \
121 	    val)
122 #define	PCIX_CAP_GET(sz, bus_p, off) \
123 	PCI_CAP_GET ## sz(bus_p->bus_cfg_hdl, NULL, bus_p->bus_pcix_off, off)
124 #define	PCIX_CAP_PUT(sz, bus_p, off, val) \
125 	PCI_CAP_PUT ## sz(bus_p->bus_cfg_hdl, NULL, bus_p->bus_pcix_off, off, \
126 	    val)
127 
128 /* Translate PF error return values to DDI_FM values */
129 #define	PF_ERR2DDIFM_ERR(sts) \
130 	(sts & PF_ERR_FATAL_FLAGS ? DDI_FM_FATAL :	\
131 	(sts == PF_ERR_NO_ERROR ? DDI_FM_OK : DDI_FM_NONFATAL))
132 
133 /*
134  * The following flag is used for Broadcom 5714/5715 bridge prefetch issue.
135  * This flag will be used both by px and pcieb nexus drivers.
136  */
137 #define	PX_DMAI_FLAGS_MAP_BUFZONE	0x40000
138 
139 /*
140  * PCI(e/-X) structures used to to gather and report errors detected by
141  * PCI(e/-X) compliant devices.  These registers only contain "dynamic" data.
142  * Static data such as Capability Offsets and Version #s is saved in the parent
143  * private data.
144  */
145 #define	PCI_ERR_REG(pfd_p)	   pfd_p->pe_pci_regs
146 #define	PCI_BDG_ERR_REG(pfd_p)	   PCI_ERR_REG(pfd_p)->pci_bdg_regs
147 #define	PCIX_ERR_REG(pfd_p)	   pfd_p->pe_ext.pe_pcix_regs
148 #define	PCIX_ECC_REG(pfd_p)	   PCIX_ERR_REG(pfd_p)->pcix_ecc_regs
149 #define	PCIX_BDG_ERR_REG(pfd_p)	   pfd_p->pe_pcix_bdg_regs
150 #define	PCIX_BDG_ECC_REG(pfd_p, n) PCIX_BDG_ERR_REG(pfd_p)->pcix_bdg_ecc_regs[n]
151 #define	PCIE_ERR_REG(pfd_p)	   pfd_p->pe_ext.pe_pcie_regs
152 #define	PCIE_RP_REG(pfd_p)	   PCIE_ERR_REG(pfd_p)->pcie_rp_regs
153 #define	PCIE_ROOT_FAULT(pfd_p)	   pfd_p->pe_root_fault
154 #define	PCIE_ADV_REG(pfd_p)	   PCIE_ERR_REG(pfd_p)->pcie_adv_regs
155 #define	PCIE_ADV_HDR(pfd_p, n)	   PCIE_ADV_REG(pfd_p)->pcie_ue_hdr[n]
156 #define	PCIE_ADV_BDG_REG(pfd_p) \
157 	PCIE_ADV_REG(pfd_p)->pcie_ext.pcie_adv_bdg_regs
158 #define	PCIE_ADV_BDG_HDR(pfd_p, n) PCIE_ADV_BDG_REG(pfd_p)->pcie_sue_hdr[n]
159 #define	PCIE_ADV_RP_REG(pfd_p) \
160 	PCIE_ADV_REG(pfd_p)->pcie_ext.pcie_adv_rp_regs
161 #define	PFD_IS_ROOT(pfd_p)	   PCIE_IS_ROOT(PCIE_PFD2BUS(pfd_p))
162 #define	PFD_IS_RC(pfd_p)	   PCIE_IS_RC(PCIE_PFD2BUS(pfd_p))
163 #define	PFD_IS_RP(pfd_p)	   PCIE_IS_RP(PCIE_PFD2BUS(pfd_p))
164 
165 /* bus_hp_mode field */
166 typedef enum {
167 	PCIE_NONE_HP_MODE	= 0x0,
168 	PCIE_ACPI_HP_MODE	= 0x1,
169 	PCIE_PCI_HP_MODE	= 0x2,
170 	PCIE_NATIVE_HP_MODE	= 0x4
171 } pcie_hp_mode_t;
172 
173 typedef struct pf_pci_bdg_err_regs {
174 	uint16_t pci_bdg_sec_stat;	/* PCI secondary status reg */
175 	uint16_t pci_bdg_ctrl;		/* PCI bridge control reg */
176 } pf_pci_bdg_err_regs_t;
177 
178 typedef struct pf_pci_err_regs {
179 	uint16_t pci_err_status;	/* pci status register */
180 	uint16_t pci_cfg_comm;		/* pci command register */
181 	pf_pci_bdg_err_regs_t *pci_bdg_regs;
182 } pf_pci_err_regs_t;
183 
184 typedef struct pf_pcix_ecc_regs {
185 	uint32_t pcix_ecc_ctlstat;	/* pcix ecc control status reg */
186 	uint32_t pcix_ecc_fstaddr;	/* pcix ecc first address reg */
187 	uint32_t pcix_ecc_secaddr;	/* pcix ecc second address reg */
188 	uint32_t pcix_ecc_attr;		/* pcix ecc attributes reg */
189 } pf_pcix_ecc_regs_t;
190 
191 typedef struct pf_pcix_err_regs {
192 	uint16_t pcix_command;		/* pcix command register */
193 	uint32_t pcix_status;		/* pcix status register */
194 	pf_pcix_ecc_regs_t *pcix_ecc_regs;	/* pcix ecc registers */
195 } pf_pcix_err_regs_t;
196 
197 typedef struct pf_pcix_bdg_err_regs {
198 	uint16_t pcix_bdg_sec_stat;	/* pcix bridge secondary status reg */
199 	uint32_t pcix_bdg_stat;		/* pcix bridge status reg */
200 	pf_pcix_ecc_regs_t *pcix_bdg_ecc_regs[2];	/* pcix ecc registers */
201 } pf_pcix_bdg_err_regs_t;
202 
203 typedef struct pf_pcie_adv_bdg_err_regs {
204 	uint32_t pcie_sue_ctl;		/* pcie bridge secondary ue control */
205 	uint32_t pcie_sue_status;	/* pcie bridge secondary ue status */
206 	uint32_t pcie_sue_mask;		/* pcie bridge secondary ue mask */
207 	uint32_t pcie_sue_sev;		/* pcie bridge secondary ue severity */
208 	uint32_t pcie_sue_hdr[4];	/* pcie bridge secondary ue hdr log */
209 	uint32_t pcie_sue_tgt_trans;	/* Fault trans type from SAER Logs */
210 	uint64_t pcie_sue_tgt_addr;	/* Fault addr from SAER Logs */
211 	pcie_req_id_t pcie_sue_tgt_bdf;	/* Fault bdf from SAER Logs */
212 } pf_pcie_adv_bdg_err_regs_t;
213 
214 typedef struct pf_pcie_adv_rp_err_regs {
215 	uint32_t pcie_rp_err_status;	/* pcie root complex error status reg */
216 	uint32_t pcie_rp_err_cmd;	/* pcie root complex error cmd reg */
217 	uint16_t pcie_rp_ce_src_id;	/* pcie root complex ce sourpe id */
218 	uint16_t pcie_rp_ue_src_id;	/* pcie root complex ue sourpe id */
219 } pf_pcie_adv_rp_err_regs_t;
220 
221 typedef struct pf_pcie_adv_err_regs {
222 	uint32_t pcie_adv_ctl;		/* pcie advanced control reg */
223 	uint32_t pcie_ue_status;	/* pcie ue error status reg */
224 	uint32_t pcie_ue_mask;		/* pcie ue error mask reg */
225 	uint32_t pcie_ue_sev;		/* pcie ue error severity reg */
226 	uint32_t pcie_ue_hdr[4];	/* pcie ue header log */
227 	uint32_t pcie_ce_status;	/* pcie ce error status reg */
228 	uint32_t pcie_ce_mask;		/* pcie ce error mask reg */
229 	union {
230 		pf_pcie_adv_bdg_err_regs_t *pcie_adv_bdg_regs; /* bdg regs */
231 		pf_pcie_adv_rp_err_regs_t *pcie_adv_rp_regs;	 /* rp regs */
232 	} pcie_ext;
233 	uint32_t pcie_ue_tgt_trans;	/* Fault trans type from AER Logs */
234 	uint64_t pcie_ue_tgt_addr;	/* Fault addr from AER Logs */
235 	pcie_req_id_t pcie_ue_tgt_bdf;	/* Fault bdf from AER Logs */
236 } pf_pcie_adv_err_regs_t;
237 
238 typedef struct pf_pcie_rp_err_regs {
239 	uint32_t pcie_rp_status;	/* root complex status register */
240 	uint16_t pcie_rp_ctl;		/* root complex control register */
241 } pf_pcie_rp_err_regs_t;
242 
243 typedef struct pf_pcie_err_regs {
244 	uint16_t pcie_err_status;	/* pcie device status register */
245 	uint16_t pcie_err_ctl;		/* pcie error control register */
246 	uint32_t pcie_dev_cap;		/* pcie device capabilities register */
247 	pf_pcie_rp_err_regs_t *pcie_rp_regs;	 /* pcie root complex regs */
248 	pf_pcie_adv_err_regs_t *pcie_adv_regs; /* pcie aer regs */
249 } pf_pcie_err_regs_t;
250 
251 typedef struct pf_root_fault {
252 	pcie_req_id_t	scan_bdf;	/* BDF from error logs */
253 	uint64_t	scan_addr;	/* Addr from error logs */
254 	boolean_t	full_scan;	/* Option to do a full scan */
255 } pf_root_fault_t;
256 
257 typedef struct pf_data pf_data_t;
258 
259 typedef struct pcie_bus {
260 	/* Needed for PCI/PCIe fabric error handling */
261 	dev_info_t	*bus_dip;
262 	dev_info_t	*bus_rp_dip;
263 	ddi_acc_handle_t bus_cfg_hdl;		/* error handling acc hdle */
264 	uint_t		bus_fm_flags;
265 	uint_t		bus_soft_state;
266 
267 	/* Static PCI/PCIe information */
268 	pcie_req_id_t	bus_bdf;
269 	pcie_req_id_t	bus_rp_bdf;		/* BDF of device's Root Port */
270 	uint32_t	bus_dev_ven_id;		/* device/vendor ID */
271 	uint8_t		bus_rev_id;		/* revision ID */
272 	uint8_t		bus_hdr_type;		/* pci header type, see pci.h */
273 	uint16_t	bus_dev_type;		/* PCI-E dev type, see pcie.h */
274 	uint8_t		bus_bdg_secbus;		/* Bridge secondary bus num */
275 	uint16_t	bus_pcie_off;		/* PCIe Capability Offset */
276 	uint16_t	bus_aer_off;		/* PCIe Advanced Error Offset */
277 	uint16_t	bus_pcix_off;		/* PCIx Capability Offset */
278 	uint16_t	bus_pci_hp_off;		/* PCI HP (SHPC) Cap Offset */
279 	uint16_t	bus_ecc_ver;		/* PCIX ecc version */
280 	pci_bus_range_t	bus_bus_range;		/* pci bus-range property */
281 	ppb_ranges_t	*bus_addr_ranges;	/* pci range property */
282 	int		bus_addr_entries;	/* number of range prop */
283 	pci_regspec_t	*bus_assigned_addr;	/* "assigned-address" prop */
284 	int		bus_assigned_entries;	/* number of prop entries */
285 
286 	/* Cache of last fault data */
287 	pf_data_t	*bus_pfd;
288 
289 	int		bus_mps;		/* Maximum Payload Size */
290 
291 	void		*bus_plat_private;	/* Platform specific */
292 	/* Hotplug specific fields */
293 	pcie_hp_mode_t	bus_hp_sup_modes;	/* HP modes supported */
294 	pcie_hp_mode_t	bus_hp_curr_mode;	/* HP mode used */
295 	void		*bus_hp_ctrl;		/* HP bus ctrl data */
296 	int		bus_ari;		/* ARI device */
297 } pcie_bus_t;
298 
299 struct pf_data {
300 	boolean_t		pe_lock;
301 	boolean_t		pe_valid;
302 	uint32_t		pe_severity_flags;	/* Severity of error */
303 	pcie_bus_t		*pe_bus_p;
304 	pf_root_fault_t		*pe_root_fault;	/* Only valid for RC and RP */
305 	pf_pci_err_regs_t	*pe_pci_regs;	/* PCI error reg */
306 	union {
307 		pf_pcix_err_regs_t	*pe_pcix_regs;	/* PCI-X error reg */
308 		pf_pcie_err_regs_t	*pe_pcie_regs;	/* PCIe error reg */
309 	} pe_ext;
310 	pf_pcix_bdg_err_regs_t *pe_pcix_bdg_regs; /* PCI-X bridge regs */
311 	pf_data_t		*pe_prev;	/* Next error in queue */
312 	pf_data_t		*pe_next;	/* Next error in queue */
313 	boolean_t		pe_rber_fatal;
314 };
315 
316 /* Information used while handling errors in the fabric. */
317 typedef struct pf_impl {
318 	ddi_fm_error_t	*pf_derr;
319 	pf_root_fault_t	*pf_fault;	/* captured fault bdf/addr to scan */
320 	pf_data_t	*pf_dq_head_p;	/* ptr to fault data queue */
321 	pf_data_t	*pf_dq_tail_p;	/* ptr pt last fault data q */
322 	uint32_t	pf_total;	/* total non RC pf_datas */
323 } pf_impl_t;
324 
325 /* bus_fm_flags field */
326 #define	PF_FM_READY		(1 << 0)	/* bus_fm_lock initialized */
327 #define	PF_FM_IS_NH		(1 << 1)	/* known as non-hardened */
328 
329 /*
330  * PCIe fabric handle lookup address flags.  Used to define what type of
331  * transaction the address is for.  These same value are defined again in
332  * fabric-xlate FM module.  Do not modify these variables, without modifying
333  * those.
334  */
335 #define	PF_ADDR_DMA		(1 << 0)
336 #define	PF_ADDR_PIO		(1 << 1)
337 #define	PF_ADDR_CFG		(1 << 2)
338 
339 /* PCIe fabric error scanning status flags */
340 #define	PF_SCAN_SUCCESS		(1 << 0)
341 #define	PF_SCAN_CB_FAILURE	(1 << 1) /* hardened device callback failure */
342 #define	PF_SCAN_NO_ERR_IN_CHILD	(1 << 2) /* no errors in bridge sec stat reg */
343 #define	PF_SCAN_IN_DQ		(1 << 3) /* already present in the faultq */
344 #define	PF_SCAN_DEADLOCK	(1 << 4) /* deadlock detected */
345 #define	PF_SCAN_BAD_RESPONSE	(1 << 5) /* Incorrect device response */
346 
347 /* PCIe fabric error handling severity return flags */
348 #define	PF_ERR_NO_ERROR		(1 << 0) /* No error seen */
349 #define	PF_ERR_CE		(1 << 1) /* Correctable Error */
350 #define	PF_ERR_NO_PANIC		(1 << 2) /* Error should not panic sys */
351 #define	PF_ERR_MATCHED_DEVICE	(1 << 3) /* Error Handled By Device */
352 #define	PF_ERR_MATCHED_RC	(1 << 4) /* Error Handled By RC */
353 #define	PF_ERR_MATCHED_PARENT	(1 << 5) /* Error Handled By Parent */
354 #define	PF_ERR_PANIC		(1 << 6) /* Error should panic system */
355 #define	PF_ERR_PANIC_DEADLOCK	(1 << 7) /* deadlock detected */
356 
357 #define	PF_ERR_FATAL_FLAGS	(PF_ERR_PANIC | PF_ERR_PANIC_DEADLOCK)
358 
359 #define	PF_HDL_FOUND		1
360 #define	PF_HDL_NOTFOUND		2
361 
362 /*
363  * PCIe Capability Device Type Pseudo Definitions.
364  *
365  * PCI_PSEUDO is used on real PCI devices.  The Legacy PCI definition in the
366  * PCIe spec really refers to PCIe devices that *require* IO Space access.  IO
367  * Space access is usually frowned upon now in PCIe, but there for legacy
368  * purposes.
369  */
370 #define	PCIE_PCIECAP_DEV_TYPE_RC_PSEUDO		0x100
371 #define	PCIE_PCIECAP_DEV_TYPE_PCI_PSEUDO	0x101
372 
373 #define	PCIE_INVALID_BDF	0xFFFF
374 #define	PCIE_CHECK_VALID_BDF(x)	(x != PCIE_INVALID_BDF)
375 
376 typedef struct {
377 	dev_info_t	*dip;
378 	int		highest_common_mps;
379 } pcie_max_supported_t;
380 
381 /*
382  * Default interrupt priority for all PCI and PCIe nexus drivers including
383  * hotplug interrupts.
384  */
385 #define	PCIE_INTR_PRI		(LOCK_LEVEL - 1)
386 
387 /*
388  * XXX - PCIE_IS_PCIE check is required in order not to invoke these macros
389  * for non-standard PCI or PCI Express Hotplug Controllers.
390  */
391 #define	PCIE_ENABLE_ERRORS(dip)	\
392 	if (PCIE_IS_PCIE(PCIE_DIP2BUS(dip))) {	\
393 		pcie_enable_errors(dip);	\
394 		(void) pcie_enable_ce(dip);	\
395 	}
396 
397 #define	PCIE_DISABLE_ERRORS(dip)		\
398 	if (PCIE_IS_PCIE(PCIE_DIP2BUS(dip))) {	\
399 		pcie_disable_errors(dip);	\
400 	}
401 
402 #ifdef	DEBUG
403 #define	PCIE_DBG pcie_dbg
404 /* Common Debugging shortcuts */
405 #define	PCIE_DBG_CFG(dip, bus_p, name, sz, off, org) \
406 	PCIE_DBG("%s:%d:(0x%x) %s(0x%x) 0x%x -> 0x%x\n", ddi_node_name(dip), \
407 	    ddi_get_instance(dip), bus_p->bus_bdf, name, off, org, \
408 	    PCIE_GET(sz, bus_p, off))
409 #define	PCIE_DBG_CAP(dip, bus_p, name, sz, off, org) \
410 	PCIE_DBG("%s:%d:(0x%x) %s(0x%x) 0x%x -> 0x%x\n", ddi_node_name(dip), \
411 	    ddi_get_instance(dip), bus_p->bus_bdf, name, off, org, \
412 	    PCIE_CAP_GET(sz, bus_p, off))
413 #define	PCIE_DBG_AER(dip, bus_p, name, sz, off, org) \
414 	PCIE_DBG("%s:%d:(0x%x) %s(0x%x) 0x%x -> 0x%x\n", ddi_node_name(dip), \
415 	    ddi_get_instance(dip), bus_p->bus_bdf, name, off, org, \
416 	    PCIE_AER_GET(sz, bus_p, off))
417 
418 #else	/* DEBUG */
419 
420 #define	PCIE_DBG_CFG 0 &&
421 #define	PCIE_DBG 0 &&
422 #define	PCIE_ARI_DBG 0 &&
423 #define	PCIE_DBG_CAP 0 &&
424 #define	PCIE_DBG_AER 0 &&
425 
426 #endif	/* DEBUG */
427 
428 /* PCIe Friendly Functions */
429 extern int pcie_init(dev_info_t *dip, caddr_t arg);
430 extern int pcie_uninit(dev_info_t *dip);
431 extern int pcie_intr(dev_info_t *dip);
432 extern int pcie_open(dev_info_t *dip, dev_t *devp, int flags, int otyp,
433     cred_t *credp);
434 extern int pcie_close(dev_info_t *dip, dev_t dev, int flags, int otyp,
435     cred_t *credp);
436 extern int pcie_ioctl(dev_info_t *dip, dev_t dev, int cmd, intptr_t arg,
437     int mode, cred_t *credp, int *rvalp);
438 extern int pcie_prop_op(dev_t dev, dev_info_t *dip, ddi_prop_op_t prop_op,
439     int flags, char *name, caddr_t valuep, int *lengthp);
440 
441 extern void pcie_init_root_port_mps(dev_info_t *dip);
442 extern int pcie_initchild(dev_info_t *dip);
443 extern void pcie_uninitchild(dev_info_t *dip);
444 extern void pcie_clear_errors(dev_info_t *dip);
445 extern int pcie_postattach_child(dev_info_t *dip);
446 extern void pcie_enable_errors(dev_info_t *dip);
447 extern void pcie_disable_errors(dev_info_t *dip);
448 extern int pcie_enable_ce(dev_info_t *dip);
449 extern boolean_t pcie_bridge_is_link_disabled(dev_info_t *);
450 
451 extern pcie_bus_t *pcie_init_bus(dev_info_t *cdip);
452 extern void pcie_fini_bus(dev_info_t *cdip);
453 extern void pcie_rc_init_bus(dev_info_t *dip);
454 extern void pcie_rc_fini_bus(dev_info_t *dip);
455 extern void pcie_rc_init_pfd(dev_info_t *dip, pf_data_t *pfd);
456 extern void pcie_rc_fini_pfd(pf_data_t *pfd);
457 extern boolean_t pcie_is_child(dev_info_t *dip, dev_info_t *rdip);
458 extern int pcie_get_bdf_from_dip(dev_info_t *dip, pcie_req_id_t *bdf);
459 extern dev_info_t *pcie_get_my_childs_dip(dev_info_t *dip, dev_info_t *rdip);
460 extern uint32_t pcie_get_bdf_for_dma_xfer(dev_info_t *dip, dev_info_t *rdip);
461 extern int pcie_dev(dev_info_t *dip);
462 extern void pcie_get_fabric_mps(dev_info_t *rc_dip, dev_info_t *dip,
463 	int *max_supported);
464 extern int pcie_root_port(dev_info_t *dip);
465 extern int pcie_initchild_mps(dev_info_t *dip);
466 extern void pcie_set_rber_fatal(dev_info_t *dip, boolean_t val);
467 extern boolean_t pcie_get_rber_fatal(dev_info_t *dip);
468 
469 extern uint32_t pcie_get_aer_uce_mask();
470 extern uint32_t pcie_get_aer_ce_mask();
471 extern uint32_t pcie_get_aer_suce_mask();
472 extern uint32_t pcie_get_serr_mask();
473 extern void pcie_set_aer_uce_mask(uint32_t mask);
474 extern void pcie_set_aer_ce_mask(uint32_t mask);
475 extern void pcie_set_aer_suce_mask(uint32_t mask);
476 extern void pcie_set_serr_mask(uint32_t mask);
477 extern void pcie_init_plat(dev_info_t *dip);
478 extern void pcie_fini_plat(dev_info_t *dip);
479 extern int pcie_read_only_probe(dev_info_t *, char *, dev_info_t **);
480 extern dev_info_t *pcie_func_to_dip(dev_info_t *dip, pcie_req_id_t function);
481 extern int pcie_ari_disable(dev_info_t *dip);
482 extern int pcie_ari_enable(dev_info_t *dip);
483 
484 #define	PCIE_ARI_FORW_NOT_SUPPORTED	0
485 #define	PCIE_ARI_FORW_SUPPORTED		1
486 
487 extern int pcie_ari_supported(dev_info_t *dip);
488 
489 #define	PCIE_ARI_FORW_DISABLED	0
490 #define	PCIE_ARI_FORW_ENABLED	1
491 
492 extern int pcie_ari_is_enabled(dev_info_t *dip);
493 
494 #define	PCIE_NOT_ARI_DEVICE		0
495 #define	PCIE_ARI_DEVICE			1
496 
497 extern int pcie_ari_device(dev_info_t *dip);
498 extern int pcie_ari_get_next_function(dev_info_t *dip, int *func);
499 
500 /* PCIe error handling functions */
501 extern int pf_scan_fabric(dev_info_t *rpdip, ddi_fm_error_t *derr,
502     pf_data_t *root_pfd_p);
503 extern void pf_init(dev_info_t *, ddi_iblock_cookie_t, ddi_attach_cmd_t);
504 extern void pf_fini(dev_info_t *, ddi_detach_cmd_t);
505 extern int pf_hdl_lookup(dev_info_t *, uint64_t, uint32_t, uint64_t,
506     pcie_req_id_t);
507 extern int pf_tlp_decode(pcie_bus_t *, pf_pcie_adv_err_regs_t *);
508 extern void pcie_force_fullscan();
509 
510 #ifdef	DEBUG
511 extern uint_t pcie_debug_flags;
512 extern void pcie_dbg(char *fmt, ...);
513 #endif	/* DEBUG */
514 
515 #ifdef	__cplusplus
516 }
517 #endif
518 
519 #endif	/* _SYS_PCIE_IMPL_H */
520