1/*-
2 * Data structures and definitions for CAM Control Blocks (CCBs).
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 1997, 1998 Justin T. Gibbs.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions, and the following disclaimer,
14 *    without modification, immediately at the beginning of the file.
15 * 2. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#ifndef _CAM_CAM_CCB_H
32#define _CAM_CAM_CCB_H 1
33
34#include <sys/queue.h>
35#include <sys/time.h>
36#include <sys/limits.h>
37#ifndef _KERNEL
38#include <sys/callout.h>
39#endif
40#include <cam/cam_debug.h>
41#include <cam/scsi/scsi_all.h>
42#include <cam/ata/ata_all.h>
43#include <cam/nvme/nvme_all.h>
44#include <cam/mmc/mmc_all.h>
45
46/* General allocation length definitions for CCB structures */
47#define	IOCDBLEN	CAM_MAX_CDBLEN	/* Space for CDB bytes/pointer */
48#define	VUHBALEN	14		/* Vendor Unique HBA length */
49#define	SIM_IDLEN	16		/* ASCII string len for SIM ID */
50#define	HBA_IDLEN	16		/* ASCII string len for HBA ID */
51#define	DEV_IDLEN	16		/* ASCII string len for device names */
52#define CCB_PERIPH_PRIV_SIZE 	2	/* size of peripheral private area */
53#define CCB_SIM_PRIV_SIZE 	2	/* size of sim private area */
54
55/* Struct definitions for CAM control blocks */
56
57/* Common CCB header */
58
59/* CCB memory allocation flags */
60typedef enum {
61	CAM_CCB_FROM_UMA	= 0x00000001,/* CCB from a periph UMA zone */
62} ccb_alloc_flags;
63
64/* CAM CCB flags */
65typedef enum {
66	CAM_CDB_POINTER		= 0x00000001,/* The CDB field is a pointer    */
67	CAM_unused1		= 0x00000002,
68	CAM_unused2		= 0x00000004,
69	CAM_NEGOTIATE		= 0x00000008,/*
70					      * Perform transport negotiation
71					      * with this command.
72					      */
73	CAM_DATA_ISPHYS		= 0x00000010,/* Data type with physical addrs */
74	CAM_DIS_AUTOSENSE	= 0x00000020,/* Disable autosense feature     */
75	CAM_DIR_BOTH		= 0x00000000,/* Data direction (00:IN/OUT)    */
76	CAM_DIR_IN		= 0x00000040,/* Data direction (01:DATA IN)   */
77	CAM_DIR_OUT		= 0x00000080,/* Data direction (10:DATA OUT)  */
78	CAM_DIR_NONE		= 0x000000C0,/* Data direction (11:no data)   */
79	CAM_DIR_MASK		= 0x000000C0,/* Data direction Mask	      */
80	CAM_DATA_VADDR		= 0x00000000,/* Data type (000:Virtual)       */
81	CAM_DATA_PADDR		= 0x00000010,/* Data type (001:Physical)      */
82	CAM_DATA_SG		= 0x00040000,/* Data type (010:sglist)        */
83	CAM_DATA_SG_PADDR	= 0x00040010,/* Data type (011:sglist phys)   */
84	CAM_DATA_BIO		= 0x00200000,/* Data type (100:bio)           */
85	CAM_DATA_MASK		= 0x00240010,/* Data type mask                */
86	CAM_unused3		= 0x00000100,
87	CAM_unused4		= 0x00000200,
88	CAM_DEV_QFRZDIS		= 0x00000400,/* Disable DEV Q freezing	      */
89	CAM_DEV_QFREEZE		= 0x00000800,/* Freeze DEV Q on execution     */
90	CAM_HIGH_POWER		= 0x00001000,/* Command takes a lot of power  */
91	CAM_SENSE_PTR		= 0x00002000,/* Sense data is a pointer	      */
92	CAM_SENSE_PHYS		= 0x00004000,/* Sense pointer is physical addr*/
93	CAM_TAG_ACTION_VALID	= 0x00008000,/* Use the tag action in this ccb*/
94	CAM_PASS_ERR_RECOVER	= 0x00010000,/* Pass driver does err. recovery*/
95	CAM_DIS_DISCONNECT	= 0x00020000,/* Disable disconnect	      */
96	CAM_unused5		= 0x00080000,
97	CAM_unused6		= 0x00100000,
98	CAM_CDB_PHYS		= 0x00400000,/* CDB poiner is physical	      */
99	CAM_unused7		= 0x00800000,
100
101/* Phase cognizant mode flags */
102	CAM_unused8		= 0x01000000,
103	CAM_unused9		= 0x02000000,
104	CAM_unused10		= 0x04000000,
105	CAM_unused11		= 0x08000000,
106	CAM_unused12		= 0x10000000,
107	CAM_unused13		= 0x20000000,
108	CAM_unused14		= 0x40000000,
109
110/* Host target Mode flags */
111	CAM_SEND_SENSE		= 0x08000000,/* Send sense data with status   */
112	CAM_unused15		= 0x10000000,
113	CAM_unused16		= 0x20000000,
114	CAM_SEND_STATUS		= 0x40000000,/* Send status after data phase  */
115
116	CAM_UNLOCKED		= 0x80000000 /* Call callback without lock.   */
117} ccb_flags;
118
119typedef enum {
120	CAM_USER_DATA_ADDR	= 0x00000002,/* Userspace data pointers */
121	CAM_SG_FORMAT_IOVEC	= 0x00000004,/* iovec instead of busdma S/G*/
122	CAM_UNMAPPED_BUF	= 0x00000008 /* use unmapped I/O */
123} ccb_xflags;
124
125/* XPT Opcodes for xpt_action */
126typedef enum {
127/* Function code flags are bits greater than 0xff */
128	XPT_FC_QUEUED		= 0x100,
129				/* Non-immediate function code */
130	XPT_FC_USER_CCB		= 0x200,
131	XPT_FC_XPT_ONLY		= 0x400,
132				/* Only for the transport layer device */
133	XPT_FC_DEV_QUEUED	= 0x800 | XPT_FC_QUEUED,
134				/* Passes through the device queues */
135/* Common function commands: 0x00->0x0F */
136	XPT_NOOP 		= 0x00,
137				/* Execute Nothing */
138	XPT_SCSI_IO		= 0x01 | XPT_FC_DEV_QUEUED,
139				/* Execute the requested I/O operation */
140	XPT_GDEV_TYPE		= 0x02,
141				/* Get type information for specified device */
142	XPT_GDEVLIST		= 0x03,
143				/* Get a list of peripheral devices */
144	XPT_PATH_INQ		= 0x04,
145				/* Path routing inquiry */
146	XPT_REL_SIMQ		= 0x05,
147				/* Release a frozen device queue */
148	XPT_SASYNC_CB		= 0x06,
149				/* Set Asynchronous Callback Parameters */
150	XPT_SDEV_TYPE		= 0x07,
151				/* Set device type information */
152	XPT_SCAN_BUS		= 0x08 | XPT_FC_QUEUED | XPT_FC_USER_CCB
153				       | XPT_FC_XPT_ONLY,
154				/* (Re)Scan the SCSI Bus */
155	XPT_DEV_MATCH		= 0x09 | XPT_FC_XPT_ONLY,
156				/* Get EDT entries matching the given pattern */
157	XPT_DEBUG		= 0x0a,
158				/* Turn on debugging for a bus, target or lun */
159	XPT_PATH_STATS		= 0x0b,
160				/* Path statistics (error counts, etc.) */
161	XPT_GDEV_STATS		= 0x0c,
162				/* Device statistics (error counts, etc.) */
163	XPT_DEV_ADVINFO		= 0x0e,
164				/* Get/Set Device advanced information */
165	XPT_ASYNC		= 0x0f | XPT_FC_QUEUED | XPT_FC_USER_CCB
166				       | XPT_FC_XPT_ONLY,
167				/* Asynchronous event */
168/* SCSI Control Functions: 0x10->0x1F */
169	XPT_ABORT		= 0x10,
170				/* Abort the specified CCB */
171	XPT_RESET_BUS		= 0x11 | XPT_FC_XPT_ONLY,
172				/* Reset the specified SCSI bus */
173	XPT_RESET_DEV		= 0x12 | XPT_FC_DEV_QUEUED,
174				/* Bus Device Reset the specified SCSI device */
175	XPT_TERM_IO		= 0x13,
176				/* Terminate the I/O process */
177	XPT_SCAN_LUN		= 0x14 | XPT_FC_QUEUED | XPT_FC_USER_CCB
178				       | XPT_FC_XPT_ONLY,
179				/* Scan Logical Unit */
180	XPT_GET_TRAN_SETTINGS	= 0x15,
181				/*
182				 * Get default/user transfer settings
183				 * for the target
184				 */
185	XPT_SET_TRAN_SETTINGS	= 0x16,
186				/*
187				 * Set transfer rate/width
188				 * negotiation settings
189				 */
190	XPT_CALC_GEOMETRY	= 0x17,
191				/*
192				 * Calculate the geometry parameters for
193				 * a device give the sector size and
194				 * volume size.
195				 */
196	XPT_ATA_IO		= 0x18 | XPT_FC_DEV_QUEUED,
197				/* Execute the requested ATA I/O operation */
198
199	XPT_GET_SIM_KNOB_OLD	= 0x18, /* Compat only */
200
201	XPT_SET_SIM_KNOB	= 0x19,
202				/*
203				 * Set SIM specific knob values.
204				 */
205
206	XPT_GET_SIM_KNOB	= 0x1a,
207				/*
208				 * Get SIM specific knob values.
209				 */
210
211	XPT_SMP_IO		= 0x1b | XPT_FC_DEV_QUEUED,
212				/* Serial Management Protocol */
213
214	XPT_NVME_IO		= 0x1c | XPT_FC_DEV_QUEUED,
215				/* Execute the requested NVMe I/O operation */
216
217	XPT_MMC_IO		= 0x1d | XPT_FC_DEV_QUEUED,
218				/* Placeholder for MMC / SD / SDIO I/O stuff */
219
220	XPT_SCAN_TGT		= 0x1e | XPT_FC_QUEUED | XPT_FC_USER_CCB
221				       | XPT_FC_XPT_ONLY,
222				/* Scan Target */
223
224	XPT_NVME_ADMIN		= 0x1f | XPT_FC_DEV_QUEUED,
225				/* Execute the requested NVMe Admin operation */
226
227/* HBA engine commands 0x20->0x2F */
228	XPT_ENG_INQ		= 0x20 | XPT_FC_XPT_ONLY,
229				/* HBA engine feature inquiry */
230	XPT_ENG_EXEC		= 0x21 | XPT_FC_DEV_QUEUED,
231				/* HBA execute engine request */
232
233/* Target mode commands: 0x30->0x3F */
234	XPT_EN_LUN		= 0x30,
235				/* Enable LUN as a target */
236	XPT_TARGET_IO		= 0x31 | XPT_FC_DEV_QUEUED,
237				/* Execute target I/O request */
238	XPT_ACCEPT_TARGET_IO	= 0x32 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
239				/* Accept Host Target Mode CDB */
240	XPT_CONT_TARGET_IO	= 0x33 | XPT_FC_DEV_QUEUED,
241				/* Continue Host Target I/O Connection */
242	XPT_IMMED_NOTIFY	= 0x34 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
243				/* Notify Host Target driver of event (obsolete) */
244	XPT_NOTIFY_ACK		= 0x35,
245				/* Acknowledgement of event (obsolete) */
246	XPT_IMMEDIATE_NOTIFY	= 0x36 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
247				/* Notify Host Target driver of event */
248	XPT_NOTIFY_ACKNOWLEDGE	= 0x37 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
249				/* Acknowledgement of event */
250	XPT_REPROBE_LUN		= 0x38 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
251				/* Query device capacity and notify GEOM */
252
253	XPT_MMC_SET_TRAN_SETTINGS = 0x40 | XPT_FC_DEV_QUEUED,
254	XPT_MMC_GET_TRAN_SETTINGS = 0x41 | XPT_FC_DEV_QUEUED,
255
256/* Vendor Unique codes: 0x80->0x8F */
257	XPT_VUNIQUE		= 0x80
258} xpt_opcode;
259
260#define XPT_FC_GROUP_MASK		0xF0
261#define XPT_FC_GROUP(op) ((op) & XPT_FC_GROUP_MASK)
262#define XPT_FC_GROUP_COMMON		0x00
263#define XPT_FC_GROUP_SCSI_CONTROL	0x10
264#define XPT_FC_GROUP_HBA_ENGINE		0x20
265#define XPT_FC_GROUP_TMODE		0x30
266#define XPT_FC_GROUP_VENDOR_UNIQUE	0x80
267
268#define XPT_FC_IS_DEV_QUEUED(ccb) 	\
269    (((ccb)->ccb_h.func_code & XPT_FC_DEV_QUEUED) == XPT_FC_DEV_QUEUED)
270#define XPT_FC_IS_QUEUED(ccb) 	\
271    (((ccb)->ccb_h.func_code & XPT_FC_QUEUED) != 0)
272
273typedef enum {
274	PROTO_UNKNOWN,
275	PROTO_UNSPECIFIED,
276	PROTO_SCSI,	/* Small Computer System Interface */
277	PROTO_ATA,	/* AT Attachment */
278	PROTO_ATAPI,	/* AT Attachment Packetized Interface */
279	PROTO_SATAPM,	/* SATA Port Multiplier */
280	PROTO_SEMB,	/* SATA Enclosure Management Bridge */
281	PROTO_NVME,	/* NVME */
282	PROTO_MMCSD,	/* MMC, SD, SDIO */
283} cam_proto;
284
285typedef enum {
286	XPORT_UNKNOWN,
287	XPORT_UNSPECIFIED,
288	XPORT_SPI,	/* SCSI Parallel Interface */
289	XPORT_FC,	/* Fiber Channel */
290	XPORT_SSA,	/* Serial Storage Architecture */
291	XPORT_USB,	/* Universal Serial Bus */
292	XPORT_PPB,	/* Parallel Port Bus */
293	XPORT_ATA,	/* AT Attachment */
294	XPORT_SAS,	/* Serial Attached SCSI */
295	XPORT_SATA,	/* Serial AT Attachment */
296	XPORT_ISCSI,	/* iSCSI */
297	XPORT_SRP,	/* SCSI RDMA Protocol */
298	XPORT_NVME,	/* NVMe over PCIe */
299	XPORT_MMCSD,	/* MMC, SD, SDIO card */
300	XPORT_NVMF,	/* NVMe over Fabrics */
301} cam_xport;
302
303#define XPORT_IS_NVME(t)	((t) == XPORT_NVME || (t) == XPORT_NVMF)
304#define XPORT_IS_ATA(t)		((t) == XPORT_ATA || (t) == XPORT_SATA)
305#define XPORT_IS_SCSI(t)	((t) != XPORT_UNKNOWN && \
306				 (t) != XPORT_UNSPECIFIED && \
307				 !XPORT_IS_ATA(t) && !XPORT_IS_NVME(t))
308#define XPORT_DEVSTAT_TYPE(t)	(XPORT_IS_ATA(t) ? DEVSTAT_TYPE_IF_IDE : \
309				 XPORT_IS_SCSI(t) ? DEVSTAT_TYPE_IF_SCSI : \
310				 XPORT_IS_NVME(t) ? DEVSTAT_TYPE_IF_NVME : \
311				 DEVSTAT_TYPE_IF_OTHER)
312
313#define PROTO_VERSION_UNKNOWN (UINT_MAX - 1)
314#define PROTO_VERSION_UNSPECIFIED UINT_MAX
315#define XPORT_VERSION_UNKNOWN (UINT_MAX - 1)
316#define XPORT_VERSION_UNSPECIFIED UINT_MAX
317
318typedef union {
319	LIST_ENTRY(ccb_hdr) le;
320	SLIST_ENTRY(ccb_hdr) sle;
321	TAILQ_ENTRY(ccb_hdr) tqe;
322	STAILQ_ENTRY(ccb_hdr) stqe;
323} camq_entry;
324
325typedef union {
326	void		*ptr;
327	u_long		field;
328	uint8_t	bytes[sizeof(uintptr_t)];
329} ccb_priv_entry;
330
331typedef union {
332	ccb_priv_entry	entries[CCB_PERIPH_PRIV_SIZE];
333	uint8_t	bytes[CCB_PERIPH_PRIV_SIZE * sizeof(ccb_priv_entry)];
334} ccb_ppriv_area;
335
336typedef union {
337	ccb_priv_entry	entries[CCB_SIM_PRIV_SIZE];
338	uint8_t	bytes[CCB_SIM_PRIV_SIZE * sizeof(ccb_priv_entry)];
339} ccb_spriv_area;
340
341typedef struct {
342	struct timeval	*etime;
343	uintptr_t	sim_data;
344	uintptr_t	periph_data;
345} ccb_qos_area;
346
347struct ccb_hdr {
348	cam_pinfo	pinfo;		/* Info for priority scheduling */
349	camq_entry	xpt_links;	/* For chaining in the XPT layer */
350	camq_entry	sim_links;	/* For chaining in the SIM layer */
351	camq_entry	periph_links;	/* For chaining in the type driver */
352#if BYTE_ORDER == LITTLE_ENDIAN
353	uint16_t       retry_count;
354	uint16_t       alloc_flags;	/* ccb_alloc_flags */
355#else
356	uint16_t       alloc_flags;	/* ccb_alloc_flags */
357	uint16_t       retry_count;
358#endif
359	void		(*cbfcnp)(struct cam_periph *, union ccb *);
360					/* Callback on completion function */
361	xpt_opcode	func_code;	/* XPT function code */
362	uint32_t	status;		/* Status returned by CAM subsystem */
363	struct		cam_path *path;	/* Compiled path for this ccb */
364	path_id_t	path_id;	/* Path ID for the request */
365	target_id_t	target_id;	/* Target device ID */
366	lun_id_t	target_lun;	/* Target LUN number */
367	uint32_t	flags;		/* ccb_flags */
368	uint32_t	xflags;		/* Extended flags */
369	ccb_ppriv_area	periph_priv;
370	ccb_spriv_area	sim_priv;
371	ccb_qos_area	qos;
372	uint32_t	timeout;	/* Hard timeout value in mseconds */
373	struct timeval	softtimeout;	/* Soft timeout value in sec + usec */
374};
375
376/* Get Device Information CCB */
377struct ccb_getdev {
378	struct	  ccb_hdr ccb_h;
379	cam_proto protocol;
380	struct scsi_inquiry_data inq_data;
381	struct ata_params ident_data;
382	uint8_t  serial_num[252];
383	uint8_t  inq_flags;
384	uint8_t  serial_num_len;
385	void *padding[2];
386};
387
388/* Device Statistics CCB */
389struct ccb_getdevstats {
390	struct	ccb_hdr	ccb_h;
391	int	dev_openings;	/* Space left for more work on device*/
392	int	dev_active;	/* Transactions running on the device */
393	int	allocated;	/* CCBs allocated for the device */
394	int	queued;		/* CCBs queued to be sent to the device */
395	int	held;		/*
396				 * CCBs held by peripheral drivers
397				 * for this device
398				 */
399	int	maxtags;	/*
400				 * Boundary conditions for number of
401				 * tagged operations
402				 */
403	int	mintags;
404	struct	timeval last_reset;	/* Time of last bus reset/loop init */
405};
406
407typedef enum {
408	CAM_GDEVLIST_LAST_DEVICE,
409	CAM_GDEVLIST_LIST_CHANGED,
410	CAM_GDEVLIST_MORE_DEVS,
411	CAM_GDEVLIST_ERROR
412} ccb_getdevlist_status_e;
413
414struct ccb_getdevlist {
415	struct ccb_hdr		ccb_h;
416	char 			periph_name[DEV_IDLEN];
417	uint32_t		unit_number;
418	unsigned int		generation;
419	uint32_t		index;
420	ccb_getdevlist_status_e	status;
421};
422
423typedef enum {
424	PERIPH_MATCH_ANY	= 0x000,
425	PERIPH_MATCH_PATH	= 0x001,
426	PERIPH_MATCH_TARGET	= 0x002,
427	PERIPH_MATCH_LUN	= 0x004,
428	PERIPH_MATCH_NAME	= 0x008,
429	PERIPH_MATCH_UNIT	= 0x010,
430} periph_pattern_flags;
431
432struct periph_match_pattern {
433	char			periph_name[DEV_IDLEN];
434	uint32_t		unit_number;
435	path_id_t		path_id;
436	target_id_t		target_id;
437	lun_id_t		target_lun;
438	periph_pattern_flags	flags;
439};
440
441typedef enum {
442	DEV_MATCH_ANY		= 0x000,
443	DEV_MATCH_PATH		= 0x001,
444	DEV_MATCH_TARGET	= 0x002,
445	DEV_MATCH_LUN		= 0x004,
446	DEV_MATCH_INQUIRY	= 0x008,
447	DEV_MATCH_DEVID		= 0x010,
448} dev_pattern_flags;
449
450struct device_id_match_pattern {
451	uint8_t id_len;
452	uint8_t id[256];
453};
454
455struct device_match_pattern {
456	path_id_t					path_id;
457	target_id_t					target_id;
458	lun_id_t					target_lun;
459	dev_pattern_flags				flags;
460	union {
461		struct scsi_static_inquiry_pattern	inq_pat;
462		struct device_id_match_pattern		devid_pat;
463	} data;
464};
465
466typedef enum {
467	BUS_MATCH_ANY		= 0x000,
468	BUS_MATCH_PATH		= 0x001,
469	BUS_MATCH_NAME		= 0x002,
470	BUS_MATCH_UNIT		= 0x004,
471	BUS_MATCH_BUS_ID	= 0x008,
472} bus_pattern_flags;
473
474struct bus_match_pattern {
475	path_id_t		path_id;
476	char			dev_name[DEV_IDLEN];
477	uint32_t		unit_number;
478	uint32_t		bus_id;
479	bus_pattern_flags	flags;
480};
481
482union match_pattern {
483	struct periph_match_pattern	periph_pattern;
484	struct device_match_pattern	device_pattern;
485	struct bus_match_pattern	bus_pattern;
486};
487
488typedef enum {
489	DEV_MATCH_PERIPH,
490	DEV_MATCH_DEVICE,
491	DEV_MATCH_BUS
492} dev_match_type;
493
494struct dev_match_pattern {
495	dev_match_type		type;
496	union match_pattern	pattern;
497};
498
499struct periph_match_result {
500	char			periph_name[DEV_IDLEN];
501	uint32_t		unit_number;
502	path_id_t		path_id;
503	target_id_t		target_id;
504	lun_id_t		target_lun;
505};
506
507typedef enum {
508	DEV_RESULT_NOFLAG		= 0x00,
509	DEV_RESULT_UNCONFIGURED		= 0x01
510} dev_result_flags;
511
512struct device_match_result {
513	path_id_t			path_id;
514	target_id_t			target_id;
515	lun_id_t			target_lun;
516	cam_proto			protocol;
517	struct scsi_inquiry_data	inq_data;
518	struct ata_params		ident_data;
519	dev_result_flags		flags;
520};
521
522struct bus_match_result {
523	path_id_t	path_id;
524	char		dev_name[DEV_IDLEN];
525	uint32_t	unit_number;
526	uint32_t	bus_id;
527};
528
529union match_result {
530	struct periph_match_result	periph_result;
531	struct device_match_result	device_result;
532	struct bus_match_result		bus_result;
533};
534
535struct dev_match_result {
536	dev_match_type		type;
537	union match_result	result;
538};
539
540typedef enum {
541	CAM_DEV_MATCH_LAST,
542	CAM_DEV_MATCH_MORE,
543	CAM_DEV_MATCH_LIST_CHANGED,
544	CAM_DEV_MATCH_SIZE_ERROR,
545	CAM_DEV_MATCH_ERROR
546} ccb_dev_match_status;
547
548typedef enum {
549	CAM_DEV_POS_NONE	= 0x000,
550	CAM_DEV_POS_BUS		= 0x001,
551	CAM_DEV_POS_TARGET	= 0x002,
552	CAM_DEV_POS_DEVICE	= 0x004,
553	CAM_DEV_POS_PERIPH	= 0x008,
554	CAM_DEV_POS_PDPTR	= 0x010,
555	CAM_DEV_POS_TYPEMASK	= 0xf00,
556	CAM_DEV_POS_EDT		= 0x100,
557	CAM_DEV_POS_PDRV	= 0x200
558} dev_pos_type;
559
560struct ccb_dm_cookie {
561	void 	*bus;
562	void	*target;
563	void	*device;
564	void	*periph;
565	void	*pdrv;
566};
567
568struct ccb_dev_position {
569	u_int			generations[4];
570#define	CAM_BUS_GENERATION	0x00
571#define CAM_TARGET_GENERATION	0x01
572#define CAM_DEV_GENERATION	0x02
573#define CAM_PERIPH_GENERATION	0x03
574	dev_pos_type		position_type;
575	struct ccb_dm_cookie	cookie;
576};
577
578struct ccb_dev_match {
579	struct ccb_hdr			ccb_h;
580	ccb_dev_match_status		status;
581	uint32_t			num_patterns;
582	uint32_t			pattern_buf_len;
583	struct dev_match_pattern	*patterns;
584	uint32_t			num_matches;
585	uint32_t			match_buf_len;
586	struct dev_match_result		*matches;
587	struct ccb_dev_position		pos;
588};
589
590/*
591 * Definitions for the path inquiry CCB fields.
592 */
593#define CAM_VERSION	0x1a	/* Hex value for current version */
594
595typedef enum {
596	PI_MDP_ABLE	= 0x80,	/* Supports MDP message */
597	PI_WIDE_32	= 0x40,	/* Supports 32 bit wide SCSI */
598	PI_WIDE_16	= 0x20, /* Supports 16 bit wide SCSI */
599	PI_SDTR_ABLE	= 0x10,	/* Supports SDTR message */
600	PI_LINKED_CDB	= 0x08, /* Supports linked CDBs */
601	PI_SATAPM	= 0x04,	/* Supports SATA PM */
602	PI_TAG_ABLE	= 0x02,	/* Supports tag queue messages */
603	PI_SOFT_RST	= 0x01	/* Supports soft reset alternative */
604} pi_inqflag;
605
606typedef enum {
607	PIT_PROCESSOR	= 0x80,	/* Target mode processor mode */
608	PIT_PHASE	= 0x40,	/* Target mode phase cog. mode */
609	PIT_DISCONNECT	= 0x20,	/* Disconnects supported in target mode */
610	PIT_TERM_IO	= 0x10,	/* Terminate I/O message supported in TM */
611	PIT_GRP_6	= 0x08,	/* Group 6 commands supported */
612	PIT_GRP_7	= 0x04	/* Group 7 commands supported */
613} pi_tmflag;
614
615typedef enum {
616	PIM_ATA_EXT	= 0x200,/* ATA requests can understand ata_ext requests */
617	PIM_EXTLUNS	= 0x100,/* 64bit extended LUNs supported */
618	PIM_SCANHILO	= 0x80,	/* Bus scans from high ID to low ID */
619	PIM_NOREMOVE	= 0x40,	/* Removeable devices not included in scan */
620	PIM_NOINITIATOR	= 0x20,	/* Initiator role not supported. */
621	PIM_NOBUSRESET	= 0x10,	/* User has disabled initial BUS RESET */
622	PIM_NO_6_BYTE	= 0x08,	/* Do not send 6-byte commands */
623	PIM_SEQSCAN	= 0x04,	/* Do bus scans sequentially, not in parallel */
624	PIM_UNMAPPED	= 0x02,
625	PIM_NOSCAN	= 0x01	/* SIM does its own scanning */
626} pi_miscflag;
627
628/* Path Inquiry CCB */
629struct ccb_pathinq_settings_spi {
630	uint8_t ppr_options;
631};
632
633struct ccb_pathinq_settings_fc {
634	uint64_t wwnn;		/* world wide node name */
635	uint64_t wwpn;		/* world wide port name */
636	uint32_t port;		/* 24 bit port id, if known */
637	uint32_t bitrate;	/* Mbps */
638};
639
640struct ccb_pathinq_settings_sas {
641	uint32_t bitrate;	/* Mbps */
642};
643
644#define NVME_DEV_NAME_LEN	52
645struct ccb_pathinq_settings_nvme {
646	uint32_t nsid;		/* Namespace ID for this path */
647	uint32_t domain;
648	uint8_t  bus;
649	uint8_t  slot;
650	uint8_t  function;
651	uint8_t  extra;
652	char	 dev_name[NVME_DEV_NAME_LEN]; /* nvme controller dev name for this device */
653};
654_Static_assert(sizeof(struct ccb_pathinq_settings_nvme) == 64,
655    "ccb_pathinq_settings_nvme too big");
656
657struct ccb_pathinq_settings_nvmf {
658	uint32_t nsid;		/* Namespace ID for this path */
659	uint8_t  trtype;
660	char	 dev_name[NVME_DEV_NAME_LEN]; /* nvme controller dev name for this device */
661};
662
663#define	PATHINQ_SETTINGS_SIZE	128
664
665struct ccb_pathinq {
666	struct 	    ccb_hdr ccb_h;
667	uint8_t    version_num;	/* Version number for the SIM/HBA */
668	uint8_t    hba_inquiry;	/* Mimic of INQ byte 7 for the HBA */
669	uint16_t   target_sprt;	/* Flags for target mode support */
670	uint32_t   hba_misc;		/* Misc HBA features */
671	uint16_t   hba_eng_cnt;	/* HBA engine count */
672					/* Vendor Unique capabilities */
673	uint8_t    vuhba_flags[VUHBALEN];
674	uint32_t   max_target;		/* Maximum supported Target */
675	uint32_t   max_lun;		/* Maximum supported Lun */
676	uint32_t   async_flags;	/* Installed Async handlers */
677	path_id_t   hpath_id;		/* Highest Path ID in the subsystem */
678	target_id_t initiator_id;	/* ID of the HBA on the SCSI bus */
679	char	    sim_vid[SIM_IDLEN];	/* Vendor ID of the SIM */
680	char	    hba_vid[HBA_IDLEN];	/* Vendor ID of the HBA */
681	char 	    dev_name[DEV_IDLEN];/* Device name for SIM */
682	uint32_t   unit_number;	/* Unit number for SIM */
683	uint32_t   bus_id;		/* Bus ID for SIM */
684	uint32_t   base_transfer_speed;/* Base bus speed in KB/sec */
685	cam_proto   protocol;
686	u_int	    protocol_version;
687	cam_xport   transport;
688	u_int	    transport_version;
689	union {
690		struct ccb_pathinq_settings_spi spi;
691		struct ccb_pathinq_settings_fc fc;
692		struct ccb_pathinq_settings_sas sas;
693		struct ccb_pathinq_settings_nvme nvme;
694		struct ccb_pathinq_settings_nvmf nvmf;
695		char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE];
696	} xport_specific;
697	u_int		maxio;		/* Max supported I/O size, in bytes. */
698	uint16_t	hba_vendor;	/* HBA vendor ID */
699	uint16_t	hba_device;	/* HBA device ID */
700	uint16_t	hba_subvendor;	/* HBA subvendor ID */
701	uint16_t	hba_subdevice;	/* HBA subdevice ID */
702};
703
704/* Path Statistics CCB */
705struct ccb_pathstats {
706	struct	ccb_hdr	ccb_h;
707	struct	timeval last_reset;	/* Time of last bus reset/loop init */
708};
709
710typedef enum {
711	SMP_FLAG_NONE		= 0x00,
712	SMP_FLAG_REQ_SG		= 0x01,
713	SMP_FLAG_RSP_SG		= 0x02
714} ccb_smp_pass_flags;
715
716/*
717 * Serial Management Protocol CCB
718 * XXX Currently the semantics for this CCB are that it is executed either
719 * by the addressed device, or that device's parent (i.e. an expander for
720 * any device on an expander) if the addressed device doesn't support SMP.
721 * Later, once we have the ability to probe SMP-only devices and put them
722 * in CAM's topology, the CCB will only be executed by the addressed device
723 * if possible.
724 */
725struct ccb_smpio {
726	struct ccb_hdr		ccb_h;
727	uint8_t			*smp_request;
728	int			smp_request_len;
729	uint16_t		smp_request_sglist_cnt;
730	uint8_t			*smp_response;
731	int			smp_response_len;
732	uint16_t		smp_response_sglist_cnt;
733	ccb_smp_pass_flags	flags;
734};
735
736typedef union {
737	uint8_t *sense_ptr;		/*
738					 * Pointer to storage
739					 * for sense information
740					 */
741	                                /* Storage Area for sense information */
742	struct	 scsi_sense_data sense_buf;
743} sense_t;
744
745typedef union {
746	uint8_t  *cdb_ptr;		/* Pointer to the CDB bytes to send */
747					/* Area for the CDB send */
748	uint8_t  cdb_bytes[IOCDBLEN];
749} cdb_t;
750
751/*
752 * SCSI I/O Request CCB used for the XPT_SCSI_IO and XPT_CONT_TARGET_IO
753 * function codes.
754 */
755struct ccb_scsiio {
756	struct	   ccb_hdr ccb_h;
757	union	   ccb *next_ccb;	/* Ptr for next CCB for action */
758	uint8_t   *req_map;		/* Ptr to mapping info */
759	uint8_t   *data_ptr;		/* Ptr to the data buf/SG list */
760	uint32_t  dxfer_len;		/* Data transfer length */
761					/* Autosense storage */
762	struct     scsi_sense_data sense_data;
763	uint8_t   sense_len;		/* Number of bytes to autosense */
764	uint8_t   cdb_len;		/* Number of bytes for the CDB */
765	uint16_t  sglist_cnt;		/* Number of SG list entries */
766	uint8_t   scsi_status;		/* Returned SCSI status */
767	uint8_t   sense_resid;		/* Autosense resid length: 2's comp */
768	uint32_t  resid;		/* Transfer residual length: 2's comp */
769	cdb_t	   cdb_io;		/* Union for CDB bytes/pointer */
770	uint8_t   *msg_ptr;		/* Pointer to the message buffer */
771	uint16_t  msg_len;		/* Number of bytes for the Message */
772	uint8_t   tag_action;		/* What to do for tag queueing */
773	/*
774	 * The tag action should be either the define below (to send a
775	 * non-tagged transaction) or one of the defined scsi tag messages
776	 * from scsi_message.h.
777	 */
778#define		CAM_TAG_ACTION_NONE	0x00
779	uint8_t	   priority;		/* Command priority for SIMPLE tag */
780	u_int	   tag_id;		/* tag id from initator (target mode) */
781	u_int	   init_id;		/* initiator id of who selected */
782#if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
783	struct bio *bio;		/* Associated bio */
784#endif
785};
786
787static __inline uint8_t *
788scsiio_cdb_ptr(struct ccb_scsiio *ccb)
789{
790	return ((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
791	    ccb->cdb_io.cdb_ptr : ccb->cdb_io.cdb_bytes);
792}
793
794/*
795 * ATA I/O Request CCB used for the XPT_ATA_IO function code.
796 */
797struct ccb_ataio {
798	struct	   ccb_hdr ccb_h;
799	union	   ccb *next_ccb;	/* Ptr for next CCB for action */
800	struct ata_cmd	cmd;		/* ATA command register set */
801	struct ata_res	res;		/* ATA result register set */
802	uint8_t   *data_ptr;		/* Ptr to the data buf/SG list */
803	uint32_t  dxfer_len;		/* Data transfer length */
804	uint32_t  resid;		/* Transfer residual length: 2's comp */
805	uint8_t   ata_flags;		/* Flags for the rest of the buffer */
806#define ATA_FLAG_AUX 0x1
807#define ATA_FLAG_ICC 0x2
808	uint8_t    icc;			/* Isochronous Command Completion */
809	uint32_t   aux;
810	uint32_t   unused;
811};
812
813/*
814 * MMC I/O Request CCB used for the XPT_MMC_IO function code.
815 */
816struct ccb_mmcio {
817	struct	   ccb_hdr ccb_h;
818	union	   ccb *next_ccb;	/* Ptr for next CCB for action */
819	struct mmc_command cmd;
820        struct mmc_command stop;
821};
822
823struct ccb_accept_tio {
824	struct	   ccb_hdr ccb_h;
825	cdb_t	   cdb_io;		/* Union for CDB bytes/pointer */
826	uint8_t   cdb_len;		/* Number of bytes for the CDB */
827	uint8_t   tag_action;		/* What to do for tag queueing */
828	uint8_t   sense_len;		/* Number of bytes of Sense Data */
829	uint8_t	   priority;		/* Command priority for SIMPLE tag */
830	u_int      tag_id;		/* tag id from initator (target mode) */
831	u_int      init_id;		/* initiator id of who selected */
832	struct     scsi_sense_data sense_data;
833};
834
835static __inline uint8_t *
836atio_cdb_ptr(struct ccb_accept_tio *ccb)
837{
838	return ((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
839	    ccb->cdb_io.cdb_ptr : ccb->cdb_io.cdb_bytes);
840}
841
842/* Release SIM Queue */
843struct ccb_relsim {
844	struct ccb_hdr ccb_h;
845	uint32_t      release_flags;
846#define RELSIM_ADJUST_OPENINGS		0x01
847#define RELSIM_RELEASE_AFTER_TIMEOUT	0x02
848#define RELSIM_RELEASE_AFTER_CMDCMPLT	0x04
849#define RELSIM_RELEASE_AFTER_QEMPTY	0x08
850	uint32_t      openings;
851	uint32_t      release_timeout;	/* Abstract argument. */
852	uint32_t      qfrozen_cnt;
853};
854
855/*
856 * NVMe I/O Request CCB used for the XPT_NVME_IO and XPT_NVME_ADMIN function codes.
857 */
858struct ccb_nvmeio {
859	struct	   ccb_hdr ccb_h;
860	union	   ccb *next_ccb;	/* Ptr for next CCB for action */
861	struct nvme_command cmd;	/* NVME command, per NVME standard */
862	struct nvme_completion cpl;	/* NVME completion, per NVME standard */
863	uint8_t   *data_ptr;		/* Ptr to the data buf/SG list */
864	uint32_t  dxfer_len;		/* Data transfer length */
865	uint16_t  sglist_cnt;		/* Number of SG list entries */
866	uint16_t  unused;		/* padding for removed uint32_t */
867};
868
869/*
870 * Definitions for the asynchronous callback CCB fields.
871 */
872typedef enum {
873	AC_UNIT_ATTENTION	= 0x4000,/* Device reported UNIT ATTENTION */
874	AC_ADVINFO_CHANGED	= 0x2000,/* Advance info might have changes */
875	AC_CONTRACT		= 0x1000,/* A contractual callback */
876	AC_GETDEV_CHANGED	= 0x800,/* Getdev info might have changed */
877	AC_INQ_CHANGED		= 0x400,/* Inquiry info might have changed */
878	AC_TRANSFER_NEG		= 0x200,/* New transfer settings in effect */
879	AC_LOST_DEVICE		= 0x100,/* A device went away */
880	AC_FOUND_DEVICE		= 0x080,/* A new device was found */
881	AC_PATH_DEREGISTERED	= 0x040,/* A path has de-registered */
882	AC_PATH_REGISTERED	= 0x020,/* A new path has been registered */
883	AC_SENT_BDR		= 0x010,/* A BDR message was sent to target */
884	AC_SCSI_AEN		= 0x008,/* A SCSI AEN has been received */
885	AC_UNSOL_RESEL		= 0x002,/* Unsolicited reselection occurred */
886	AC_BUS_RESET		= 0x001	/* A SCSI bus reset occurred */
887} ac_code;
888
889typedef void ac_callback_t (void *softc, uint32_t code,
890			    struct cam_path *path, void *args);
891
892/*
893 * Generic Asynchronous callbacks.
894 *
895 * Generic arguments passed bac which are then interpreted between a per-system
896 * contract number.
897 */
898#define	AC_CONTRACT_DATA_MAX (128 - sizeof (uint64_t))
899struct ac_contract {
900	uint64_t	contract_number;
901	uint8_t	contract_data[AC_CONTRACT_DATA_MAX];
902};
903
904#define	AC_CONTRACT_DEV_CHG	1
905struct ac_device_changed {
906	uint64_t	wwpn;
907	uint32_t	port;
908	target_id_t	target;
909	uint8_t	arrived;
910};
911
912/* Set Asynchronous Callback CCB */
913struct ccb_setasync {
914	struct ccb_hdr	 ccb_h;
915	uint32_t	 event_enable;	/* Async Event enables */
916	ac_callback_t	*callback;
917	void		*callback_arg;
918};
919
920/* Set Device Type CCB */
921struct ccb_setdev {
922	struct	   ccb_hdr ccb_h;
923	uint8_t   dev_type;	/* Value for dev type field in EDT */
924};
925
926/* SCSI Control Functions */
927
928/* Abort XPT request CCB */
929struct ccb_abort {
930	struct 	ccb_hdr ccb_h;
931	union	ccb *abort_ccb;	/* Pointer to CCB to abort */
932};
933
934/* Reset SCSI Bus CCB */
935struct ccb_resetbus {
936	struct	ccb_hdr ccb_h;
937};
938
939/* Reset SCSI Device CCB */
940struct ccb_resetdev {
941	struct	ccb_hdr ccb_h;
942};
943
944/* Terminate I/O Process Request CCB */
945struct ccb_termio {
946	struct	ccb_hdr ccb_h;
947	union	ccb *termio_ccb;	/* Pointer to CCB to terminate */
948};
949
950typedef enum {
951	CTS_TYPE_CURRENT_SETTINGS,
952	CTS_TYPE_USER_SETTINGS
953} cts_type;
954
955struct ccb_trans_settings_scsi
956{
957	u_int	valid;	/* Which fields to honor */
958#define	CTS_SCSI_VALID_TQ		0x01
959	u_int	flags;
960#define	CTS_SCSI_FLAGS_TAG_ENB		0x01
961};
962
963struct ccb_trans_settings_ata
964{
965	u_int	valid;	/* Which fields to honor */
966#define	CTS_ATA_VALID_TQ		0x01
967	u_int	flags;
968#define	CTS_ATA_FLAGS_TAG_ENB		0x01
969};
970
971struct ccb_trans_settings_spi
972{
973	u_int	  valid;	/* Which fields to honor */
974#define	CTS_SPI_VALID_SYNC_RATE		0x01
975#define	CTS_SPI_VALID_SYNC_OFFSET	0x02
976#define	CTS_SPI_VALID_BUS_WIDTH		0x04
977#define	CTS_SPI_VALID_DISC		0x08
978#define CTS_SPI_VALID_PPR_OPTIONS	0x10
979	u_int	flags;
980#define	CTS_SPI_FLAGS_DISC_ENB		0x01
981	u_int	sync_period;
982	u_int	sync_offset;
983	u_int	bus_width;
984	u_int	ppr_options;
985};
986
987struct ccb_trans_settings_fc {
988	u_int     	valid;		/* Which fields to honor */
989#define	CTS_FC_VALID_WWNN		0x8000
990#define	CTS_FC_VALID_WWPN		0x4000
991#define	CTS_FC_VALID_PORT		0x2000
992#define	CTS_FC_VALID_SPEED		0x1000
993	uint64_t	wwnn;		/* world wide node name */
994	uint64_t 	wwpn;		/* world wide port name */
995	uint32_t 	port;		/* 24 bit port id, if known */
996	uint32_t 	bitrate;	/* Mbps */
997};
998
999struct ccb_trans_settings_sas {
1000	u_int     	valid;		/* Which fields to honor */
1001#define	CTS_SAS_VALID_SPEED		0x1000
1002	uint32_t 	bitrate;	/* Mbps */
1003};
1004
1005struct ccb_trans_settings_pata {
1006	u_int     	valid;		/* Which fields to honor */
1007#define	CTS_ATA_VALID_MODE		0x01
1008#define	CTS_ATA_VALID_BYTECOUNT		0x02
1009#define	CTS_ATA_VALID_ATAPI		0x20
1010#define	CTS_ATA_VALID_CAPS		0x40
1011	int		mode;		/* Mode */
1012	u_int 		bytecount;	/* Length of PIO transaction */
1013	u_int 		atapi;		/* Length of ATAPI CDB */
1014	u_int 		caps;		/* Device and host SATA caps. */
1015#define	CTS_ATA_CAPS_H			0x0000ffff
1016#define	CTS_ATA_CAPS_H_DMA48		0x00000001 /* 48-bit DMA */
1017#define	CTS_ATA_CAPS_D			0xffff0000
1018};
1019
1020struct ccb_trans_settings_sata {
1021	u_int     	valid;		/* Which fields to honor */
1022#define	CTS_SATA_VALID_MODE		0x01
1023#define	CTS_SATA_VALID_BYTECOUNT	0x02
1024#define	CTS_SATA_VALID_REVISION		0x04
1025#define	CTS_SATA_VALID_PM		0x08
1026#define	CTS_SATA_VALID_TAGS		0x10
1027#define	CTS_SATA_VALID_ATAPI		0x20
1028#define	CTS_SATA_VALID_CAPS		0x40
1029	int		mode;		/* Legacy PATA mode */
1030	u_int 		bytecount;	/* Length of PIO transaction */
1031	int		revision;	/* SATA revision */
1032	u_int 		pm_present;	/* PM is present (XPT->SIM) */
1033	u_int 		tags;		/* Number of allowed tags */
1034	u_int 		atapi;		/* Length of ATAPI CDB */
1035	u_int 		caps;		/* Device and host SATA caps. */
1036#define	CTS_SATA_CAPS_H			0x0000ffff
1037#define	CTS_SATA_CAPS_H_PMREQ		0x00000001
1038#define	CTS_SATA_CAPS_H_APST		0x00000002
1039#define	CTS_SATA_CAPS_H_DMAAA		0x00000010 /* Auto-activation */
1040#define	CTS_SATA_CAPS_H_AN		0x00000020 /* Async. notification */
1041#define	CTS_SATA_CAPS_D			0xffff0000
1042#define	CTS_SATA_CAPS_D_PMREQ		0x00010000
1043#define	CTS_SATA_CAPS_D_APST		0x00020000
1044};
1045
1046struct ccb_trans_settings_nvme
1047{
1048	u_int     	valid;		/* Which fields to honor */
1049#define CTS_NVME_VALID_SPEC	0x01
1050#define CTS_NVME_VALID_CAPS	0x02
1051#define CTS_NVME_VALID_LINK	0x04
1052	uint32_t	spec;		/* NVMe spec implemented -- same as vs register */
1053	uint32_t	max_xfer;	/* Max transfer size (0 -> unlimited */
1054	uint32_t	caps;
1055	uint8_t		lanes;		/* Number of PCIe lanes */
1056	uint8_t		speed;		/* PCIe generation for each lane */
1057	uint8_t		max_lanes;	/* Number of PCIe lanes */
1058	uint8_t		max_speed;	/* PCIe generation for each lane */
1059};
1060
1061struct ccb_trans_settings_nvmf
1062{
1063	u_int     	valid;		/* Which fields to honor */
1064#define CTS_NVMF_VALID_TRTYPE	0x01
1065	uint8_t		trtype;
1066};
1067
1068#include <cam/mmc/mmc_bus.h>
1069struct ccb_trans_settings_mmc {
1070	struct mmc_ios ios;
1071#define MMC_CLK		(1 << 1)
1072#define MMC_VDD		(1 << 2)
1073#define MMC_CS		(1 << 3)
1074#define MMC_BW		(1 << 4)
1075#define MMC_PM		(1 << 5)
1076#define MMC_BT		(1 << 6)
1077#define MMC_BM		(1 << 7)
1078#define MMC_VCCQ        (1 << 8)
1079	uint32_t ios_valid;
1080/* The folowing is used only for GET_TRAN_SETTINGS */
1081	uint32_t	host_ocr;
1082	int host_f_min;
1083	int host_f_max;
1084/* Copied from sys/dev/mmc/bridge.h */
1085#define	MMC_CAP_4_BIT_DATA	(1 <<  0) /* Can do 4-bit data transfers */
1086#define	MMC_CAP_8_BIT_DATA	(1 <<  1) /* Can do 8-bit data transfers */
1087#define	MMC_CAP_HSPEED		(1 <<  2) /* Can do High Speed transfers */
1088#define	MMC_CAP_BOOT_NOACC	(1 <<  4) /* Cannot access boot partitions */
1089#define	MMC_CAP_WAIT_WHILE_BUSY	(1 <<  5) /* Host waits for busy responses */
1090#define	MMC_CAP_UHS_SDR12	(1 <<  6) /* Can do UHS SDR12 */
1091#define	MMC_CAP_UHS_SDR25	(1 <<  7) /* Can do UHS SDR25 */
1092#define	MMC_CAP_UHS_SDR50	(1 <<  8) /* Can do UHS SDR50 */
1093#define	MMC_CAP_UHS_SDR104	(1 <<  9) /* Can do UHS SDR104 */
1094#define	MMC_CAP_UHS_DDR50	(1 << 10) /* Can do UHS DDR50 */
1095#define	MMC_CAP_MMC_DDR52_120	(1 << 11) /* Can do eMMC DDR52 at 1.2 V */
1096#define	MMC_CAP_MMC_DDR52_180	(1 << 12) /* Can do eMMC DDR52 at 1.8 V */
1097#define	MMC_CAP_MMC_DDR52	(MMC_CAP_MMC_DDR52_120 | MMC_CAP_MMC_DDR52_180)
1098#define	MMC_CAP_MMC_HS200_120	(1 << 13) /* Can do eMMC HS200 at 1.2 V */
1099#define	MMC_CAP_MMC_HS200_180	(1 << 14) /* Can do eMMC HS200 at 1.8 V */
1100#define	MMC_CAP_MMC_HS200	(MMC_CAP_MMC_HS200_120| MMC_CAP_MMC_HS200_180)
1101#define	MMC_CAP_MMC_HS400_120	(1 << 15) /* Can do eMMC HS400 at 1.2 V */
1102#define	MMC_CAP_MMC_HS400_180	(1 << 16) /* Can do eMMC HS400 at 1.8 V */
1103#define	MMC_CAP_MMC_HS400	(MMC_CAP_MMC_HS400_120 | MMC_CAP_MMC_HS400_180)
1104#define	MMC_CAP_MMC_HSX00_120	(MMC_CAP_MMC_HS200_120 | MMC_CAP_MMC_HS400_120)
1105#define	MMC_CAP_MMC_ENH_STROBE	(1 << 17) /* Can do eMMC Enhanced Strobe */
1106#define	MMC_CAP_SIGNALING_120	(1 << 18) /* Can do signaling at 1.2 V */
1107#define	MMC_CAP_SIGNALING_180	(1 << 19) /* Can do signaling at 1.8 V */
1108#define	MMC_CAP_SIGNALING_330	(1 << 20) /* Can do signaling at 3.3 V */
1109#define	MMC_CAP_DRIVER_TYPE_A	(1 << 21) /* Can do Driver Type A */
1110#define	MMC_CAP_DRIVER_TYPE_C	(1 << 22) /* Can do Driver Type C */
1111#define	MMC_CAP_DRIVER_TYPE_D	(1 << 23) /* Can do Driver Type D */
1112
1113	uint32_t host_caps;
1114	uint32_t host_max_data;
1115};
1116
1117/* Get/Set transfer rate/width/disconnection/tag queueing settings */
1118struct ccb_trans_settings {
1119	struct	  ccb_hdr ccb_h;
1120	cts_type  type;		/* Current or User settings */
1121	cam_proto protocol;
1122	u_int	  protocol_version;
1123	cam_xport transport;
1124	u_int	  transport_version;
1125	union {
1126		u_int  valid;	/* Which fields to honor */
1127		struct ccb_trans_settings_ata ata;
1128		struct ccb_trans_settings_scsi scsi;
1129		struct ccb_trans_settings_nvme nvme;
1130		struct ccb_trans_settings_mmc mmc;
1131	} proto_specific;
1132	union {
1133		u_int  valid;	/* Which fields to honor */
1134		struct ccb_trans_settings_spi spi;
1135		struct ccb_trans_settings_fc fc;
1136		struct ccb_trans_settings_sas sas;
1137		struct ccb_trans_settings_pata ata;
1138		struct ccb_trans_settings_sata sata;
1139		struct ccb_trans_settings_nvme nvme;
1140		struct ccb_trans_settings_nvmf nvmf;
1141	} xport_specific;
1142};
1143
1144/*
1145 * Calculate the geometry parameters for a device
1146 * give the block size and volume size in blocks.
1147 */
1148struct ccb_calc_geometry {
1149	struct	  ccb_hdr ccb_h;
1150	uint32_t block_size;
1151	uint64_t volume_size;
1152	uint32_t cylinders;
1153	uint8_t  heads;
1154	uint8_t  secs_per_track;
1155};
1156
1157/*
1158 * Set or get SIM (and transport) specific knobs
1159 */
1160
1161#define	KNOB_VALID_ADDRESS	0x1
1162#define	KNOB_VALID_ROLE		0x2
1163
1164#define	KNOB_ROLE_NONE		0x0
1165#define	KNOB_ROLE_INITIATOR	0x1
1166#define	KNOB_ROLE_TARGET	0x2
1167#define	KNOB_ROLE_BOTH		0x3
1168
1169struct ccb_sim_knob_settings_spi {
1170	u_int		valid;
1171	u_int		initiator_id;
1172	u_int		role;
1173};
1174
1175struct ccb_sim_knob_settings_fc {
1176	u_int		valid;
1177	uint64_t	wwnn;		/* world wide node name */
1178	uint64_t 	wwpn;		/* world wide port name */
1179	u_int		role;
1180};
1181
1182struct ccb_sim_knob_settings_sas {
1183	u_int		valid;
1184	uint64_t	wwnn;		/* world wide node name */
1185	u_int		role;
1186};
1187#define	KNOB_SETTINGS_SIZE	128
1188
1189struct ccb_sim_knob {
1190	struct	  ccb_hdr ccb_h;
1191	union {
1192		u_int  valid;	/* Which fields to honor */
1193		struct ccb_sim_knob_settings_spi spi;
1194		struct ccb_sim_knob_settings_fc fc;
1195		struct ccb_sim_knob_settings_sas sas;
1196		char pad[KNOB_SETTINGS_SIZE];
1197	} xport_specific;
1198};
1199
1200/*
1201 * Rescan the given bus, or bus/target/lun
1202 */
1203struct ccb_rescan {
1204	struct	ccb_hdr ccb_h;
1205	cam_flags	flags;
1206};
1207
1208/*
1209 * Turn on debugging for the given bus, bus/target, or bus/target/lun.
1210 */
1211struct ccb_debug {
1212	struct	ccb_hdr ccb_h;
1213	cam_debug_flags flags;
1214};
1215
1216/* Target mode structures. */
1217
1218struct ccb_en_lun {
1219	struct	  ccb_hdr ccb_h;
1220	uint16_t grp6_len;		/* Group 6 VU CDB length */
1221	uint16_t grp7_len;		/* Group 7 VU CDB length */
1222	uint8_t  enable;
1223};
1224
1225/* old, barely used immediate notify, binary compatibility */
1226struct ccb_immed_notify {
1227	struct	  ccb_hdr ccb_h;
1228	struct    scsi_sense_data sense_data;
1229	uint8_t  sense_len;		/* Number of bytes in sense buffer */
1230	uint8_t  initiator_id;		/* Id of initiator that selected */
1231	uint8_t  message_args[7];	/* Message Arguments */
1232};
1233
1234struct ccb_notify_ack {
1235	struct	  ccb_hdr ccb_h;
1236	uint16_t seq_id;		/* Sequence identifier */
1237	uint8_t  event;		/* Event flags */
1238};
1239
1240struct ccb_immediate_notify {
1241	struct    ccb_hdr ccb_h;
1242	u_int     tag_id;		/* Tag for immediate notify */
1243	u_int     seq_id;		/* Tag for target of notify */
1244	u_int     initiator_id;		/* Initiator Identifier */
1245	u_int     arg;			/* Function specific */
1246};
1247
1248struct ccb_notify_acknowledge {
1249	struct    ccb_hdr ccb_h;
1250	u_int     tag_id;		/* Tag for immediate notify */
1251	u_int     seq_id;		/* Tar for target of notify */
1252	u_int     initiator_id;		/* Initiator Identifier */
1253	u_int     arg;			/* Response information */
1254	/*
1255	 * Lower byte of arg is one of RESPONSE CODE values defined below
1256	 * (subset of response codes from SPL-4 and FCP-4 specifications),
1257	 * upper 3 bytes is code-specific ADDITIONAL RESPONSE INFORMATION.
1258	 */
1259#define	CAM_RSP_TMF_COMPLETE		0x00
1260#define	CAM_RSP_TMF_REJECTED		0x04
1261#define	CAM_RSP_TMF_FAILED		0x05
1262#define	CAM_RSP_TMF_SUCCEEDED		0x08
1263#define	CAM_RSP_TMF_INCORRECT_LUN	0x09
1264};
1265
1266/* HBA engine structures. */
1267
1268typedef enum {
1269	EIT_BUFFER,	/* Engine type: buffer memory */
1270	EIT_LOSSLESS,	/* Engine type: lossless compression */
1271	EIT_LOSSY,	/* Engine type: lossy compression */
1272	EIT_ENCRYPT	/* Engine type: encryption */
1273} ei_type;
1274
1275typedef enum {
1276	EAD_VUNIQUE,	/* Engine algorithm ID: vendor unique */
1277	EAD_LZ1V1,	/* Engine algorithm ID: LZ1 var.1 */
1278	EAD_LZ2V1,	/* Engine algorithm ID: LZ2 var.1 */
1279	EAD_LZ2V2	/* Engine algorithm ID: LZ2 var.2 */
1280} ei_algo;
1281
1282struct ccb_eng_inq {
1283	struct	  ccb_hdr ccb_h;
1284	uint16_t eng_num;	/* The engine number for this inquiry */
1285	ei_type   eng_type;	/* Returned engine type */
1286	ei_algo   eng_algo;	/* Returned engine algorithm type */
1287	uint32_t eng_memeory;	/* Returned engine memory size */
1288};
1289
1290struct ccb_eng_exec {	/* This structure must match SCSIIO size */
1291	struct	  ccb_hdr ccb_h;
1292	uint8_t  *pdrv_ptr;	/* Ptr used by the peripheral driver */
1293	uint8_t  *req_map;	/* Ptr for mapping info on the req. */
1294	uint8_t  *data_ptr;	/* Pointer to the data buf/SG list */
1295	uint32_t dxfer_len;	/* Data transfer length */
1296	uint8_t  *engdata_ptr;	/* Pointer to the engine buffer data */
1297	uint16_t sglist_cnt;	/* Num of scatter gather list entries */
1298	uint32_t dmax_len;	/* Destination data maximum length */
1299	uint32_t dest_len;	/* Destination data length */
1300	int32_t	  src_resid;	/* Source residual length: 2's comp */
1301	uint32_t timeout;	/* Timeout value */
1302	uint16_t eng_num;	/* Engine number for this request */
1303	uint16_t vu_flags;	/* Vendor Unique flags */
1304};
1305
1306/*
1307 * Definitions for the timeout field in the SCSI I/O CCB.
1308 */
1309#define	CAM_TIME_DEFAULT	0x00000000	/* Use SIM default value */
1310#define	CAM_TIME_INFINITY	0xFFFFFFFF	/* Infinite timeout */
1311
1312#define	CAM_SUCCESS	0	/* For signaling general success */
1313
1314#define XPT_CCB_INVALID	-1	/* for signaling a bad CCB to free */
1315
1316/*
1317 * CCB for working with advanced device information.  This operates in a fashion
1318 * similar to XPT_GDEV_TYPE.  Specify the target in ccb_h, the buffer
1319 * type requested, and provide a buffer size/buffer to write to.  If the
1320 * buffer is too small, provsiz will be larger than bufsiz.
1321 */
1322struct ccb_dev_advinfo {
1323	struct ccb_hdr ccb_h;
1324	uint32_t flags;
1325#define	CDAI_FLAG_NONE		0x0	/* No flags set */
1326#define	CDAI_FLAG_STORE		0x1	/* If set, action becomes store */
1327	uint32_t buftype;		/* IN: Type of data being requested */
1328	/* NB: buftype is interpreted on a per-transport basis */
1329#define	CDAI_TYPE_SCSI_DEVID	1
1330#define	CDAI_TYPE_SERIAL_NUM	2
1331#define	CDAI_TYPE_PHYS_PATH	3
1332#define	CDAI_TYPE_RCAPLONG	4
1333#define	CDAI_TYPE_EXT_INQ	5
1334#define	CDAI_TYPE_NVME_CNTRL	6	/* NVMe Identify Controller data */
1335#define	CDAI_TYPE_NVME_NS	7	/* NVMe Identify Namespace data */
1336#define	CDAI_TYPE_MMC_PARAMS	8	/* MMC/SD ident */
1337	off_t bufsiz;			/* IN: Size of external buffer */
1338#define	CAM_SCSI_DEVID_MAXLEN	65536	/* length in buffer is an uint16_t */
1339	off_t provsiz;			/* OUT: Size required/used */
1340	uint8_t *buf;			/* IN/OUT: Buffer for requested data */
1341};
1342
1343/*
1344 * CCB for sending async events
1345 */
1346struct ccb_async {
1347	struct ccb_hdr ccb_h;
1348	uint32_t async_code;
1349	off_t async_arg_size;
1350	void *async_arg_ptr;
1351};
1352
1353/*
1354 * Union of all CCB types for kernel space allocation.  This union should
1355 * never be used for manipulating CCBs - its only use is for the allocation
1356 * and deallocation of raw CCB space and is the return type of xpt_ccb_alloc
1357 * and the argument to xpt_ccb_free.
1358 */
1359union ccb {
1360	struct	ccb_hdr			ccb_h;	/* For convenience */
1361	struct	ccb_scsiio		csio;
1362	struct	ccb_getdev		cgd;
1363	struct	ccb_getdevlist		cgdl;
1364	struct	ccb_pathinq		cpi;
1365	struct	ccb_relsim		crs;
1366	struct	ccb_setasync		csa;
1367	struct	ccb_setdev		csd;
1368	struct	ccb_pathstats		cpis;
1369	struct	ccb_getdevstats		cgds;
1370	struct	ccb_dev_match		cdm;
1371	struct	ccb_trans_settings	cts;
1372	struct	ccb_calc_geometry	ccg;
1373	struct	ccb_sim_knob		knob;
1374	struct	ccb_abort		cab;
1375	struct	ccb_resetbus		crb;
1376	struct	ccb_resetdev		crd;
1377	struct	ccb_termio		tio;
1378	struct	ccb_accept_tio		atio;
1379	struct	ccb_scsiio		ctio;
1380	struct	ccb_en_lun		cel;
1381	struct	ccb_immed_notify	cin;
1382	struct	ccb_notify_ack		cna;
1383	struct	ccb_immediate_notify	cin1;
1384	struct	ccb_notify_acknowledge	cna2;
1385	struct	ccb_eng_inq		cei;
1386	struct	ccb_eng_exec		cee;
1387	struct	ccb_smpio		smpio;
1388	struct 	ccb_rescan		crcn;
1389	struct  ccb_debug		cdbg;
1390	struct	ccb_ataio		ataio;
1391	struct	ccb_dev_advinfo		cdai;
1392	struct	ccb_async		casync;
1393	struct	ccb_nvmeio		nvmeio;
1394	struct	ccb_mmcio		mmcio;
1395};
1396
1397#define CCB_CLEAR_ALL_EXCEPT_HDR(ccbp)			\
1398	bzero((char *)(ccbp) + sizeof((ccbp)->ccb_h),	\
1399	    sizeof(*(ccbp)) - sizeof((ccbp)->ccb_h))
1400
1401__BEGIN_DECLS
1402static __inline void
1403cam_fill_csio(struct ccb_scsiio *csio, uint32_t retries,
1404	      void (*cbfcnp)(struct cam_periph *, union ccb *),
1405	      uint32_t flags, uint8_t tag_action,
1406	      uint8_t *data_ptr, uint32_t dxfer_len,
1407	      uint8_t sense_len, uint8_t cdb_len,
1408	      uint32_t timeout)
1409{
1410	csio->ccb_h.func_code = XPT_SCSI_IO;
1411	csio->ccb_h.flags = flags;
1412	csio->ccb_h.xflags = 0;
1413	csio->ccb_h.retry_count = retries;
1414	csio->ccb_h.cbfcnp = cbfcnp;
1415	csio->ccb_h.timeout = timeout;
1416	csio->data_ptr = data_ptr;
1417	csio->dxfer_len = dxfer_len;
1418	csio->sense_len = sense_len;
1419	csio->cdb_len = cdb_len;
1420	csio->tag_action = tag_action;
1421	csio->priority = 0;
1422#if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
1423	csio->bio = NULL;
1424#endif
1425}
1426
1427static __inline void
1428cam_fill_ctio(struct ccb_scsiio *csio, uint32_t retries,
1429	      void (*cbfcnp)(struct cam_periph *, union ccb *),
1430	      uint32_t flags, u_int tag_action, u_int tag_id,
1431	      u_int init_id, u_int scsi_status, uint8_t *data_ptr,
1432	      uint32_t dxfer_len, uint32_t timeout)
1433{
1434	csio->ccb_h.func_code = XPT_CONT_TARGET_IO;
1435	csio->ccb_h.flags = flags;
1436	csio->ccb_h.xflags = 0;
1437	csio->ccb_h.retry_count = retries;
1438	csio->ccb_h.cbfcnp = cbfcnp;
1439	csio->ccb_h.timeout = timeout;
1440	csio->data_ptr = data_ptr;
1441	csio->dxfer_len = dxfer_len;
1442	csio->scsi_status = scsi_status;
1443	csio->tag_action = tag_action;
1444	csio->priority = 0;
1445	csio->tag_id = tag_id;
1446	csio->init_id = init_id;
1447}
1448
1449static __inline void
1450cam_fill_ataio(struct ccb_ataio *ataio, uint32_t retries,
1451	      void (*cbfcnp)(struct cam_periph *, union ccb *),
1452	      uint32_t flags, u_int tag_action __unused,
1453	      uint8_t *data_ptr, uint32_t dxfer_len,
1454	      uint32_t timeout)
1455{
1456	ataio->ccb_h.func_code = XPT_ATA_IO;
1457	ataio->ccb_h.flags = flags;
1458	ataio->ccb_h.retry_count = retries;
1459	ataio->ccb_h.cbfcnp = cbfcnp;
1460	ataio->ccb_h.timeout = timeout;
1461	ataio->data_ptr = data_ptr;
1462	ataio->dxfer_len = dxfer_len;
1463	ataio->ata_flags = 0;
1464}
1465
1466static __inline void
1467cam_fill_smpio(struct ccb_smpio *smpio, uint32_t retries,
1468	       void (*cbfcnp)(struct cam_periph *, union ccb *), uint32_t flags,
1469	       uint8_t *smp_request, int smp_request_len,
1470	       uint8_t *smp_response, int smp_response_len,
1471	       uint32_t timeout)
1472{
1473#ifdef _KERNEL
1474	KASSERT((flags & CAM_DIR_MASK) == CAM_DIR_BOTH,
1475		("direction != CAM_DIR_BOTH"));
1476	KASSERT((smp_request != NULL) && (smp_response != NULL),
1477		("need valid request and response buffers"));
1478	KASSERT((smp_request_len != 0) && (smp_response_len != 0),
1479		("need non-zero request and response lengths"));
1480#endif /*_KERNEL*/
1481	smpio->ccb_h.func_code = XPT_SMP_IO;
1482	smpio->ccb_h.flags = flags;
1483	smpio->ccb_h.retry_count = retries;
1484	smpio->ccb_h.cbfcnp = cbfcnp;
1485	smpio->ccb_h.timeout = timeout;
1486	smpio->smp_request = smp_request;
1487	smpio->smp_request_len = smp_request_len;
1488	smpio->smp_response = smp_response;
1489	smpio->smp_response_len = smp_response_len;
1490}
1491
1492static __inline void
1493cam_fill_mmcio(struct ccb_mmcio *mmcio, uint32_t retries,
1494	       void (*cbfcnp)(struct cam_periph *, union ccb *), uint32_t flags,
1495	       uint32_t mmc_opcode, uint32_t mmc_arg, uint32_t mmc_flags,
1496	       struct mmc_data *mmc_d,
1497	       uint32_t timeout)
1498{
1499	mmcio->ccb_h.func_code = XPT_MMC_IO;
1500	mmcio->ccb_h.flags = flags;
1501	mmcio->ccb_h.retry_count = retries;
1502	mmcio->ccb_h.cbfcnp = cbfcnp;
1503	mmcio->ccb_h.timeout = timeout;
1504	mmcio->cmd.opcode = mmc_opcode;
1505	mmcio->cmd.arg = mmc_arg;
1506	mmcio->cmd.flags = mmc_flags;
1507	mmcio->stop.opcode = 0;
1508	mmcio->stop.arg = 0;
1509	mmcio->stop.flags = 0;
1510	if (mmc_d != NULL) {
1511		mmcio->cmd.data = mmc_d;
1512	} else
1513		mmcio->cmd.data = NULL;
1514	mmcio->cmd.resp[0] = 0;
1515	mmcio->cmd.resp[1] = 0;
1516	mmcio->cmd.resp[2] = 0;
1517	mmcio->cmd.resp[3] = 0;
1518}
1519
1520static __inline void
1521cam_set_ccbstatus(union ccb *ccb, cam_status status)
1522{
1523	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
1524	ccb->ccb_h.status |= status;
1525}
1526
1527static __inline cam_status
1528cam_ccb_status(union ccb *ccb)
1529{
1530	return ((cam_status)(ccb->ccb_h.status & CAM_STATUS_MASK));
1531}
1532
1533static inline bool
1534cam_ccb_success(union ccb *ccb)
1535{
1536	return (cam_ccb_status(ccb) == CAM_REQ_CMP);
1537}
1538
1539void cam_calc_geometry(struct ccb_calc_geometry *ccg, int extended);
1540
1541static __inline void
1542cam_fill_nvmeio(struct ccb_nvmeio *nvmeio, uint32_t retries,
1543	      void (*cbfcnp)(struct cam_periph *, union ccb *),
1544	      uint32_t flags, uint8_t *data_ptr, uint32_t dxfer_len,
1545	      uint32_t timeout)
1546{
1547	nvmeio->ccb_h.func_code = XPT_NVME_IO;
1548	nvmeio->ccb_h.flags = flags;
1549	nvmeio->ccb_h.retry_count = retries;
1550	nvmeio->ccb_h.cbfcnp = cbfcnp;
1551	nvmeio->ccb_h.timeout = timeout;
1552	nvmeio->data_ptr = data_ptr;
1553	nvmeio->dxfer_len = dxfer_len;
1554}
1555
1556static __inline void
1557cam_fill_nvmeadmin(struct ccb_nvmeio *nvmeio, uint32_t retries,
1558	      void (*cbfcnp)(struct cam_periph *, union ccb *),
1559	      uint32_t flags, uint8_t *data_ptr, uint32_t dxfer_len,
1560	      uint32_t timeout)
1561{
1562	nvmeio->ccb_h.func_code = XPT_NVME_ADMIN;
1563	nvmeio->ccb_h.flags = flags;
1564	nvmeio->ccb_h.retry_count = retries;
1565	nvmeio->ccb_h.cbfcnp = cbfcnp;
1566	nvmeio->ccb_h.timeout = timeout;
1567	nvmeio->data_ptr = data_ptr;
1568	nvmeio->dxfer_len = dxfer_len;
1569}
1570__END_DECLS
1571
1572#endif /* _CAM_CAM_CCB_H */
1573