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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 
28 #ifndef _AHCIVAR_H
29 #define	_AHCIVAR_H
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 /* Type for argument of event handler */
38 typedef	struct ahci_event_arg {
39 	void		*ahciea_ctlp;
40 	void		*ahciea_portp;
41 	uint32_t	ahciea_event;
42 } ahci_event_arg_t;
43 
44 /* Warlock annotation */
45 _NOTE(DATA_READABLE_WITHOUT_LOCK(ahci_event_arg_t::ahciea_ctlp))
46 _NOTE(DATA_READABLE_WITHOUT_LOCK(ahci_event_arg_t::ahciea_portp))
47 _NOTE(DATA_READABLE_WITHOUT_LOCK(ahci_event_arg_t::ahciea_event))
48 
49 /*
50  * flags for ahciport_flags
51  *
52  * AHCI_PORT_FLAG_SPINUP: this flag will be set when a HBA which supports
53  * staggered spin-up needs to do a spin-up.
54  *
55  * AHCI_PORT_FLAG_MOPPING: this flag will be set when the HBA is stopped,
56  * and all the outstanding commands need to be aborted and sent to upper
57  * layers.
58  *
59  * AHCI_PORT_FLAG_POLLING: this flag will be set when the interrupt is
60  * disabled, and the command is executed in POLLING mode.
61  *
62  * AHCI_PORT_FLAG_RQSENSE: this flag will be set when a REQUEST SENSE which
63  * is used to retrieve sense data is being executed.
64  *
65  * AHCI_PORT_FLAG_STARTED: this flag will be set when the port is started,
66  * that is PxCMD.ST is set with '1', and be cleared when the port is put into
67  * idle, that is PxCMD.ST is changed from '1' to '0'.
68  *
69  * AHCI_PORT_FLAG_RDLOGEXT: this flag will be set when a READ LOG EXT which
70  * is used to retrieve NCQ failure context is being executed.
71  *
72  * AHCI_PORT_FLAG_NODEV: this flag will be set when a device is found gone
73  * during ahci_restart_port_wait_till_ready process.
74  */
75 #define	AHCI_PORT_FLAG_SPINUP	0x01
76 #define	AHCI_PORT_FLAG_MOPPING	0x02
77 #define	AHCI_PORT_FLAG_POLLING	0x04
78 #define	AHCI_PORT_FLAG_RQSENSE	0x08
79 #define	AHCI_PORT_FLAG_STARTED	0x10
80 #define	AHCI_PORT_FLAG_RDLOGEXT	0x20
81 #define	AHCI_PORT_FLAG_NODEV	0x40
82 
83 typedef struct ahci_port {
84 	/* The physical port number */
85 	uint8_t			ahciport_port_num;
86 
87 	/* Type of the device attached to the port */
88 	uint8_t			ahciport_device_type;
89 	/* State of the port */
90 	uint32_t		ahciport_port_state;
91 
92 	/*
93 	 * AHCI_PORT_FLAG_SPINUP
94 	 * AHCI_PORT_FLAG_MOPPING
95 	 * AHCI_PORT_FLAG_POLLING
96 	 * AHCI_PORT_FLAG_RQSENSE
97 	 * AHCI_PORT_FLAG_STARTED
98 	 * AHCI_PORT_FLAG_RDLOGEXT
99 	 * AHCI_PORT_FLAG_NODEV
100 	 */
101 	int			ahciport_flags;
102 
103 	/* Pointer to received FIS structure */
104 	ahci_rcvd_fis_t		*ahciport_rcvd_fis;
105 	ddi_dma_handle_t	ahciport_rcvd_fis_dma_handle;
106 	ddi_acc_handle_t	ahciport_rcvd_fis_acc_handle;
107 	ddi_dma_cookie_t	ahciport_rcvd_fis_dma_cookie;
108 
109 	/* Pointer to command list structure */
110 	ahci_cmd_header_t	*ahciport_cmd_list;
111 	ddi_dma_handle_t	ahciport_cmd_list_dma_handle;
112 	ddi_acc_handle_t	ahciport_cmd_list_acc_handle;
113 	ddi_dma_cookie_t	ahciport_cmd_list_dma_cookie;
114 
115 	/* Pointer to cmmand table structure */
116 	ahci_cmd_table_t	\
117 			*ahciport_cmd_tables[AHCI_PORT_MAX_CMD_SLOTS];
118 	ddi_dma_handle_t	\
119 			ahciport_cmd_tables_dma_handle[AHCI_PORT_MAX_CMD_SLOTS];
120 	ddi_acc_handle_t	\
121 			ahciport_cmd_tables_acc_handle[AHCI_PORT_MAX_CMD_SLOTS];
122 
123 	/* Condition variable used for sync mode commands */
124 	kcondvar_t		ahciport_cv;
125 
126 	/* The whole mutex for the port structure */
127 	kmutex_t		ahciport_mutex;
128 
129 	/* The maximum number of tags for native queuing command transfers */
130 	int			ahciport_max_ncq_tags;
131 
132 	/* Keep the tags of all pending non-ncq commands */
133 	uint32_t		ahciport_pending_tags;
134 
135 	/*
136 	 * Keep the tags of all pending ncq commands
137 	 * (READ/WRITE FPDMA QUEUED)
138 	 */
139 	uint32_t		ahciport_pending_ncq_tags;
140 
141 	/* Keep all the pending sata packets */
142 	sata_pkt_t		*ahciport_slot_pkts[AHCI_PORT_MAX_CMD_SLOTS];
143 
144 	/* Keep the error retrieval sata packet */
145 	sata_pkt_t		*ahciport_err_retri_pkt;
146 
147 	/*
148 	 * SATA HBA driver is supposed to remember and maintain device
149 	 * reset state. While the reset is in progress, it doesn't accept
150 	 * any more commands until receiving the command with
151 	 * SATA_CLEAR_DEV_RESET_STATE flag and SATA_IGNORE_DEV_RESET_STATE.
152 	 */
153 	int			ahciport_reset_in_progress;
154 
155 	/* This is for error recovery handler */
156 	ahci_event_arg_t	*ahciport_event_args;
157 
158 	/* This is to calculate how many mops are in progress */
159 	int			ahciport_mop_in_progress;
160 } ahci_port_t;
161 
162 /* Warlock annotation */
163 _NOTE(READ_ONLY_DATA(ahci_port_t::ahciport_rcvd_fis_dma_handle))
164 _NOTE(READ_ONLY_DATA(ahci_port_t::ahciport_cmd_list_dma_handle))
165 _NOTE(READ_ONLY_DATA(ahci_port_t::ahciport_cmd_tables_dma_handle))
166 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
167 				    ahci_port_t::ahciport_device_type))
168 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
169 				    ahci_port_t::ahciport_port_state))
170 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
171 				    ahci_port_t::ahciport_flags))
172 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
173 				    ahci_port_t::ahciport_pending_tags))
174 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
175 				    ahci_port_t::ahciport_slot_pkts))
176 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
177 				    ahci_port_t::ahciport_reset_in_progress))
178 _NOTE(MUTEX_PROTECTS_DATA(ahci_port_t::ahciport_mutex,
179 				    ahci_port_t::ahciport_mop_in_progress))
180 
181 typedef struct ahci_ctl {
182 	dev_info_t		*ahcictl_dip;
183 	/* To map port number to cport number */
184 	uint8_t			ahcictl_port_to_cport[AHCI_MAX_PORTS];
185 	/* To map cport number to port number */
186 	uint8_t			ahcictl_cport_to_port[AHCI_MAX_PORTS];
187 
188 	/* Number of controller ports */
189 	int			ahcictl_num_ports;
190 	/* Number of command slots */
191 	int			ahcictl_num_cmd_slots;
192 	/* Number of implemented ports */
193 	int			ahcictl_num_implemented_ports;
194 	/* Bit map to indicate which port is implemented */
195 	uint32_t		ahcictl_ports_implemented;
196 	ahci_port_t		*ahcictl_ports[AHCI_MAX_PORTS];
197 
198 	int			ahcictl_flags;
199 	int			ahcictl_power_level;
200 	off_t			ahcictl_pmcsr_offset;
201 
202 	/*
203 	 * AHCI_CAP_PIO_MDRQ
204 	 * AHCI_CAP_NO_MCMDLIST_NONQUEUE
205 	 * AHCI_CAP_NCQ
206 	 * AHCI_CAP_PM
207 	 */
208 	int			ahcictl_cap;
209 
210 	/* Pci configuration space handle */
211 	ddi_acc_handle_t	ahcictl_pci_conf_handle;
212 
213 	/* Mapping into bar 5 - AHCI base address */
214 	ddi_acc_handle_t	ahcictl_ahci_acc_handle;
215 	uintptr_t		ahcictl_ahci_addr;
216 
217 	/* Pointer used for sata hba framework registration */
218 	struct sata_hba_tran	*ahcictl_sata_hba_tran;
219 
220 	/* DMA attributes for the data buffer */
221 	ddi_dma_attr_t		ahcictl_buffer_dma_attr;
222 	/* DMA attributes for the rcvd FIS */
223 	ddi_dma_attr_t		ahcictl_rcvd_fis_dma_attr;
224 	/* DMA attributes for the command list */
225 	ddi_dma_attr_t		ahcictl_cmd_list_dma_attr;
226 	/* DMA attributes for command tables */
227 	ddi_dma_attr_t		ahcictl_cmd_table_dma_attr;
228 
229 	/* Used for watchdog handler */
230 	timeout_id_t		ahcictl_timeout_id;
231 
232 	/* Per controller mutex */
233 	kmutex_t		ahcictl_mutex;
234 
235 	/* Components for interrupt */
236 	ddi_intr_handle_t	*ahcictl_intr_htable;   /* For array of intrs */
237 	int			ahcictl_intr_type; /* What type of interrupt */
238 	int			ahcictl_intr_cnt;  /* # of intrs returned */
239 	size_t			ahcictl_intr_size; /* Size of intr array */
240 	uint_t			ahcictl_intr_pri;  /* Intr priority */
241 	int			ahcictl_intr_cap;  /* Intr capabilities */
242 
243 	/* Taskq for handling event */
244 	ddi_taskq_t		*ahcictl_event_taskq;
245 } ahci_ctl_t;
246 
247 /* Warlock annotation */
248 _NOTE(READ_ONLY_DATA(ahci_ctl_t::ahcictl_ports))
249 _NOTE(READ_ONLY_DATA(ahci_ctl_t::ahcictl_cport_to_port))
250 _NOTE(READ_ONLY_DATA(ahci_ctl_t::ahcictl_port_to_cport))
251 
252 _NOTE(MUTEX_PROTECTS_DATA(ahci_ctl_t::ahcictl_mutex,
253 					ahci_ctl_t::ahcictl_power_level))
254 _NOTE(MUTEX_PROTECTS_DATA(ahci_ctl_t::ahcictl_mutex,
255 					ahci_ctl_t::ahcictl_flags))
256 _NOTE(MUTEX_PROTECTS_DATA(ahci_ctl_t::ahcictl_mutex,
257 					ahci_ctl_t::ahcictl_timeout_id))
258 
259 #define	AHCI_SUCCESS	(0)  /* Successful return */
260 #define	AHCI_TIMEOUT	(1)  /* Timed out */
261 #define	AHCI_FAILURE	(-1) /* Unsuccessful return */
262 
263 /* Flags for ahcictl_flags */
264 #define	AHCI_ATTACH		0x1
265 #define	AHCI_DETACH		0x2
266 #define	AHCI_SUSPEND		0x4
267 
268 /* Values for ahcictl_cap */
269 /* PIO Multiple DRQ Block */
270 #define	AHCI_CAP_PIO_MDRQ		0x1
271 /*
272  * Multiple command slots in the command list cannot be used for
273  * non-queued commands
274  */
275 #define	AHCI_CAP_NO_MCMDLIST_NONQUEUE	0x2
276 /* Native Command Queuing (NCQ) */
277 #define	AHCI_CAP_NCQ			0x4
278 /* Power Management (PM) */
279 #define	AHCI_CAP_PM			0x8
280 
281 /* Flags controlling the restart port behavior */
282 #define	AHCI_PORT_RESET		0x0001	/* Reset the port */
283 #define	AHCI_PORT_INIT		0x0002	/* Initialize port */
284 #define	AHCI_RESET_NO_EVENTS_UP	0x0004	/* Don't send reset events up */
285 
286 #define	ERR_RETRI_CMD_IN_PROGRESS(ahci_portp)		\
287 	(ahci_portp->ahciport_flags &			\
288 	(AHCI_PORT_FLAG_RQSENSE|AHCI_PORT_FLAG_RDLOGEXT))
289 
290 #define	NON_NCQ_CMD_IN_PROGRESS(ahci_portp)		\
291 	(!ERR_RETRI_CMD_IN_PROGRESS(ahci_portp) &&	\
292 	ahci_portp->ahciport_pending_tags != 0 &&	\
293 	ahci_portp->ahciport_pending_ncq_tags == 0)
294 
295 #define	NCQ_CMD_IN_PROGRESS(ahci_portp)			\
296 	(!ERR_RETRI_CMD_IN_PROGRESS(ahci_portp) &&	\
297 	ahci_portp->ahciport_pending_ncq_tags != 0)
298 
299 /* Command type for ahci_claim_free_slot routine */
300 #define	AHCI_NON_NCQ_CMD	0x0
301 #define	AHCI_NCQ_CMD		0x1
302 #define	AHCI_ERR_RETRI_CMD	0x2
303 
304 /* State values for ahci_attach */
305 #define	AHCI_ATTACH_STATE_NONE			(0x1 << 0)
306 #define	AHCI_ATTACH_STATE_STATEP_ALLOC		(0x1 << 1)
307 #define	AHCI_ATTACH_STATE_REG_MAP		(0x1 << 2)
308 #define	AHCI_ATTACH_STATE_PCICFG_SETUP		(0x1 << 3)
309 #define	AHCI_ATTACH_STATE_INTR_ADDED		(0x1 << 4)
310 #define	AHCI_ATTACH_STATE_MUTEX_INIT		(0x1 << 5)
311 #define	AHCI_ATTACH_STATE_PORT_ALLOC		(0x1 << 6)
312 #define	AHCI_ATTACH_STATE_ERR_RECV_TASKQ	(0x1 << 7)
313 #define	AHCI_ATTACH_STATE_HW_INIT		(0x1 << 8)
314 #define	AHCI_ATTACH_STATE_TIMEOUT_ENABLED	(0x1 << 9)
315 
316 /* Interval used for delay */
317 #define	AHCI_10MS_TICKS	(drv_usectohz(10000))	/* ticks in 10 millisec */
318 #define	AHCI_1MS_TICKS	(drv_usectohz(1000))	/* ticks in 1 millisec */
319 #define	AHCI_100US_TICKS	(drv_usectohz(100))	/* ticks in 100  */
320 #define	AHCI_1MS_USECS	(1000)			/* usecs in 1 millisec */
321 
322 /*
323  * The following values are the numbers of times to retry polled requests.
324  */
325 #define	AHCI_POLLRATE_HBA_RESET		100
326 #define	AHCI_POLLRATE_PORT_SSTATUS	10
327 #define	AHCI_POLLRATE_PORT_TFD_ERROR	1100
328 #define	AHCI_POLLRATE_PORT_IDLE		50
329 #define	AHCI_POLLRATE_PORT_SOFTRESET	100
330 #define	AHCI_POLLRATE_GET_SPKT		100
331 
332 
333 /* Clearing & setting the n'th bit in a given tag */
334 #define	CLEAR_BIT(tag, bit)	(tag &= ~(0x1<<bit))
335 #define	SET_BIT(tag, bit)	(tag |= (0x1<<bit))
336 
337 
338 #if DEBUG
339 
340 #define	AHCI_DEBUG		1
341 
342 #define	AHCIDBG_INIT		0x0001
343 #define	AHCIDBG_ENTRY		0x0002
344 #define	AHCIDBG_DUMP_PRB	0x0004
345 #define	AHCIDBG_EVENT		0x0008
346 #define	AHCIDBG_POLL_LOOP	0x0010
347 #define	AHCIDBG_PKTCOMP		0x0020
348 #define	AHCIDBG_TIMEOUT		0x0040
349 #define	AHCIDBG_INFO		0x0080
350 #define	AHCIDBG_VERBOSE		0x0100
351 #define	AHCIDBG_INTR		0x0200
352 #define	AHCIDBG_ERRS		0x0400
353 #define	AHCIDBG_COOKIES		0x0800
354 #define	AHCIDBG_POWER		0x1000
355 #define	AHCIDBG_COMMAND		0x2000
356 #define	AHCIDBG_SENSEDATA	0x4000
357 #define	AHCIDBG_NCQ		0x8000
358 #define	AHCIDBG_PM		0x10000
359 
360 extern int ahci_debug_flag;
361 
362 #define	AHCIDBG0(flag, ahci_ctlp, format)			\
363 	if (ahci_debug_flags & (flag)) {			\
364 		ahci_log(ahci_ctlp, CE_WARN, format);		\
365 	}
366 
367 #define	AHCIDBG1(flag, ahci_ctlp, format, arg1)			\
368 	if (ahci_debug_flags & (flag)) {			\
369 		ahci_log(ahci_ctlp, CE_WARN, format, arg1);	\
370 	}
371 
372 #define	AHCIDBG2(flag, ahci_ctlp, format, arg1, arg2)			\
373 	if (ahci_debug_flags & (flag)) {				\
374 		ahci_log(ahci_ctlp, CE_WARN, format, arg1, arg2);	\
375 	}
376 
377 #define	AHCIDBG3(flag, ahci_ctlp, format, arg1, arg2, arg3)		\
378 	if (ahci_debug_flags & (flag)) {				\
379 		ahci_log(ahci_ctlp, CE_WARN, format, arg1, arg2, arg3); \
380 	}
381 
382 #define	AHCIDBG4(flag, ahci_ctlp, format, arg1, arg2, arg3, arg4)	\
383 	if (ahci_debug_flags & (flag)) {				\
384 		ahci_log(ahci_ctlp, CE_WARN, format, arg1, arg2, arg3, arg4); \
385 	}
386 
387 #define	AHCIDBG5(flag, ahci_ctlp, format, arg1, arg2, arg3, arg4, arg5)	\
388 	if (ahci_debug_flags & (flag)) {				\
389 		ahci_log(ahci_ctlp, CE_WARN, format, arg1, arg2,	\
390 		    arg3, arg4, arg5); 					\
391 	}
392 #else
393 
394 #define	AHCIDBG0(flag, dip, frmt)
395 #define	AHCIDBG1(flag, dip, frmt, arg1)
396 #define	AHCIDBG2(flag, dip, frmt, arg1, arg2)
397 #define	AHCIDBG3(flag, dip, frmt, arg1, arg2, arg3)
398 #define	AHCIDBG4(flag, dip, frmt, arg1, arg2, arg3, arg4)
399 #define	AHCIDBG5(flag, dip, frmt, arg1, arg2, arg3, arg4, arg5)
400 
401 #endif /* DEBUG */
402 
403 
404 #ifdef	__cplusplus
405 }
406 #endif
407 
408 #endif /* _AHCIVAR_H */
409