2 * Copyright (c) 2003, 2004, 2005, 2008 Silicon Graphics International Corp.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * substantially similar to the "NO WARRANTY" disclaimer below
13 * ("Disclaimer") and any redistribution must be conditioned upon
14 * including a substantially similar Disclaimer requirement for further
15 * binary redistribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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,
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28 * POSSIBILITY OF SUCH DAMAGES.
30 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_private.h#7 $
34 * CAM Target Layer driver private data structures/definitions.
36 * Author: Ken Merry <ken@FreeBSD.org>
39 #ifndef _CTL_PRIVATE_H_
40 #define _CTL_PRIVATE_H_
43 * SCSI vendor and product names.
45 #define CTL_VENDOR "FREEBSD "
46 #define CTL_DIRECT_PRODUCT "CTLDISK "
47 #define CTL_PROCESSOR_PRODUCT "CTLPROCESSOR "
48 #define CTL_UNKNOWN_PRODUCT "CTLDEVICE "
50 #define CTL_POOL_ENTRIES_OTHER_SC 200
55 struct ctl_softc *ctl_softc;
56 struct uma_zone *zone;
67 } ctl_serialize_action;
72 CTL_ACTION_OVERLAP_TAG,
79 * WARNING: Keep the bottom nibble here free, we OR in the data direction
80 * flags for each command.
82 * Note: "OK_ON_NO_LUN" == we don't have to have a lun configured
83 * "OK_ON_BOTH" == we have to have a lun configured
84 * "SA5" == command has 5-bit service action at byte 1
87 CTL_CMD_FLAG_NONE = 0x0000,
88 CTL_CMD_FLAG_NO_SENSE = 0x0010,
89 CTL_CMD_FLAG_OK_ON_NO_LUN = 0x0020,
90 CTL_CMD_FLAG_ALLOW_ON_RESV = 0x0040,
91 CTL_CMD_FLAG_ALLOW_ON_PR_WRESV = 0x0080,
92 CTL_CMD_FLAG_OK_ON_PROC = 0x0100,
93 CTL_CMD_FLAG_OK_ON_SLUN = 0x0200,
94 CTL_CMD_FLAG_OK_ON_BOTH = 0x0300,
95 CTL_CMD_FLAG_OK_ON_STOPPED = 0x0400,
96 CTL_CMD_FLAG_OK_ON_INOPERABLE = 0x0800,
97 CTL_CMD_FLAG_OK_ON_STANDBY = 0x1000,
98 CTL_CMD_FLAG_OK_ON_UNAVAIL = 0x2000,
99 CTL_CMD_FLAG_ALLOW_ON_PR_RESV = 0x4000,
100 CTL_CMD_FLAG_SA5 = 0x8000,
101 CTL_CMD_FLAG_RUN_HERE = 0x10000
119 /* TBD: others to be filled in as needed */
120 CTL_SERIDX_COUNT, /* LAST, not a normal code, provides # codes */
121 CTL_SERIDX_INVLD = CTL_SERIDX_COUNT
124 typedef int ctl_opfunc(struct ctl_scsiio *ctsio);
126 struct ctl_cmd_entry {
130 ctl_lun_error_pattern pattern;
131 uint8_t length; /* CDB length */
132 uint8_t usage[15]; /* Mask of allowed CDB bits
133 * after the opcode byte. */
137 CTL_LUN_NONE = 0x000,
138 CTL_LUN_CONTROL = 0x001,
139 CTL_LUN_RESERVED = 0x002,
140 CTL_LUN_INVALID = 0x004,
141 CTL_LUN_DISABLED = 0x008,
142 CTL_LUN_MALLOCED = 0x010,
143 CTL_LUN_STOPPED = 0x020,
144 CTL_LUN_INOPERABLE = 0x040,
145 CTL_LUN_OFFLINE = 0x080,
146 CTL_LUN_PR_RESERVED = 0x100,
147 CTL_LUN_PRIMARY_SC = 0x200,
148 CTL_LUN_SENSE_DESC = 0x400,
149 CTL_LUN_READONLY = 0x800,
150 CTL_LUN_PEER_SC_PRIMARY = 0x1000
154 CTLBLOCK_FLAG_NONE = 0x00,
155 CTLBLOCK_FLAG_INVALID = 0x01
159 struct ctl_softc *ctl_softc;
160 struct ctlblock_softc *ctlblock_softc;
164 * Mode page defaults.
168 * These values make Solaris trim off some of the capacity.
170 #define CTL_DEFAULT_SECTORS_PER_TRACK 63
171 #define CTL_DEFAULT_HEADS 255
173 * These values seem to work okay.
175 #define CTL_DEFAULT_SECTORS_PER_TRACK 63
176 #define CTL_DEFAULT_HEADS 16
178 * These values work reasonably well.
180 #define CTL_DEFAULT_SECTORS_PER_TRACK 512
181 #define CTL_DEFAULT_HEADS 64
185 * Solaris is somewhat picky about how many heads and sectors per track you
186 * have defined in mode pages 3 and 4. These values seem to cause Solaris
187 * to get the capacity more or less right when you run the format tool.
188 * They still have problems when dealing with devices larger than 1TB,
189 * but there isn't anything we can do about that.
191 * For smaller LUN sizes, this ends up causing the number of cylinders to
192 * work out to 0. Solaris actually recognizes that and comes up with its
193 * own bogus geometry to fit the actual capacity of the drive. They really
194 * should just give up on geometry and stick to the read capacity
195 * information alone for modern disk drives.
197 * One thing worth mentioning about Solaris' mkfs command is that it
198 * doesn't like sectors per track values larger than 256. 512 seems to
199 * work okay for format, but causes problems when you try to make a
202 * Another caveat about these values: the product of these two values
203 * really should be a power of 2. This is because of the simplistic
204 * shift-based calculation that we have to use on the i386 platform to
205 * calculate the number of cylinders here. (If you use a divide, you end
206 * up calling __udivdi3(), which is a hardware FP call on the PC. On the
207 * XScale, it is done in software, so you can do that from inside the
210 * So for the current values (256 S/T, 128 H), we get 32768, which works
211 * very nicely for calculating cylinders.
213 * If you want to change these values so that their product is no longer a
214 * power of 2, re-visit the calculation in ctl_init_page_index(). You may
215 * need to make it a bit more complicated to get the number of cylinders
218 #define CTL_DEFAULT_SECTORS_PER_TRACK 256
219 #define CTL_DEFAULT_HEADS 128
221 #define CTL_DEFAULT_ROTATION_RATE SVPD_NON_ROTATING
223 struct ctl_page_index;
225 typedef int ctl_modesen_handler(struct ctl_scsiio *ctsio,
226 struct ctl_page_index *page_index,
228 typedef int ctl_modesel_handler(struct ctl_scsiio *ctsio,
229 struct ctl_page_index *page_index,
233 CTL_PAGE_FLAG_NONE = 0x00,
234 CTL_PAGE_FLAG_DISK_ONLY = 0x01
237 struct ctl_page_index {
242 ctl_page_flags page_flags;
243 ctl_modesen_handler *sense_handler;
244 ctl_modesel_handler *select_handler;
247 #define CTL_PAGE_CURRENT 0x00
248 #define CTL_PAGE_CHANGEABLE 0x01
249 #define CTL_PAGE_DEFAULT 0x02
250 #define CTL_PAGE_SAVED 0x03
252 #define CTL_NUM_LBP_PARAMS 4
253 #define CTL_NUM_LBP_THRESH 4
254 #define CTL_LBP_EXPONENT 11 /* 2048 sectors */
255 #define CTL_LBP_PERIOD 10 /* 10 seconds */
256 #define CTL_LBP_UA_PERIOD 300 /* 5 minutes */
258 struct ctl_logical_block_provisioning_page {
259 struct scsi_logical_block_provisioning_page main;
260 struct scsi_logical_block_provisioning_page_descr descr[CTL_NUM_LBP_THRESH];
263 static const struct ctl_page_index page_index_template[] = {
264 {SMS_RW_ERROR_RECOVERY_PAGE, 0, sizeof(struct scsi_da_rw_recovery_page), NULL,
265 CTL_PAGE_FLAG_DISK_ONLY, NULL, NULL},
266 {SMS_FORMAT_DEVICE_PAGE, 0, sizeof(struct scsi_format_page), NULL,
267 CTL_PAGE_FLAG_DISK_ONLY, NULL, NULL},
268 {SMS_RIGID_DISK_PAGE, 0, sizeof(struct scsi_rigid_disk_page), NULL,
269 CTL_PAGE_FLAG_DISK_ONLY, NULL, NULL},
270 {SMS_CACHING_PAGE, 0, sizeof(struct scsi_caching_page), NULL,
271 CTL_PAGE_FLAG_DISK_ONLY, NULL, ctl_caching_sp_handler},
272 {SMS_CONTROL_MODE_PAGE, 0, sizeof(struct scsi_control_page), NULL,
273 CTL_PAGE_FLAG_NONE, NULL, ctl_control_page_handler},
274 {SMS_CONTROL_MODE_PAGE | SMPH_SPF, 0x01,
275 sizeof(struct scsi_control_ext_page), NULL,
276 CTL_PAGE_FLAG_NONE, NULL, NULL},
277 {SMS_INFO_EXCEPTIONS_PAGE, 0, sizeof(struct scsi_info_exceptions_page), NULL,
278 CTL_PAGE_FLAG_NONE, NULL, NULL},
279 {SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 0x02,
280 sizeof(struct ctl_logical_block_provisioning_page), NULL,
281 CTL_PAGE_FLAG_DISK_ONLY, NULL, NULL},
282 {SMS_VENDOR_SPECIFIC_PAGE | SMPH_SPF, DBGCNF_SUBPAGE_CODE,
283 sizeof(struct copan_debugconf_subpage), NULL, CTL_PAGE_FLAG_NONE,
284 ctl_debugconf_sp_sense_handler, ctl_debugconf_sp_select_handler},
287 #define CTL_NUM_MODE_PAGES sizeof(page_index_template)/ \
288 sizeof(page_index_template[0])
290 struct ctl_mode_pages {
291 struct scsi_da_rw_recovery_page rw_er_page[4];
292 struct scsi_format_page format_page[4];
293 struct scsi_rigid_disk_page rigid_disk_page[4];
294 struct scsi_caching_page caching_page[4];
295 struct scsi_control_page control_page[4];
296 struct scsi_control_ext_page control_ext_page[4];
297 struct scsi_info_exceptions_page ie_page[4];
298 struct ctl_logical_block_provisioning_page lbp_page[4];
299 struct copan_debugconf_subpage debugconf_subpage[4];
300 struct ctl_page_index index[CTL_NUM_MODE_PAGES];
303 static const struct ctl_page_index log_page_index_template[] = {
304 {SLS_SUPPORTED_PAGES_PAGE, 0, 0, NULL,
305 CTL_PAGE_FLAG_NONE, NULL, NULL},
306 {SLS_SUPPORTED_PAGES_PAGE, SLS_SUPPORTED_SUBPAGES_SUBPAGE, 0, NULL,
307 CTL_PAGE_FLAG_NONE, NULL, NULL},
308 {SLS_LOGICAL_BLOCK_PROVISIONING, 0, 0, NULL,
309 CTL_PAGE_FLAG_DISK_ONLY, ctl_lbp_log_sense_handler, NULL},
310 {SLS_STAT_AND_PERF, 0, 0, NULL,
311 CTL_PAGE_FLAG_NONE, ctl_sap_log_sense_handler, NULL},
314 #define CTL_NUM_LOG_PAGES sizeof(log_page_index_template)/ \
315 sizeof(log_page_index_template[0])
317 struct ctl_log_pages {
318 uint8_t pages_page[CTL_NUM_LOG_PAGES];
319 uint8_t subpages_page[CTL_NUM_LOG_PAGES * 2];
320 uint8_t lbp_page[12*CTL_NUM_LBP_PARAMS];
322 struct scsi_log_stat_and_perf sap;
323 struct scsi_log_idle_time it;
324 struct scsi_log_time_interval ti;
326 struct ctl_page_index index[CTL_NUM_LOG_PAGES];
329 struct ctl_lun_delay_info {
330 ctl_delay_type datamove_type;
331 uint32_t datamove_delay;
332 ctl_delay_type done_type;
336 #define CTL_PR_ALL_REGISTRANTS 0xFFFFFFFF
337 #define CTL_PR_NO_RESERVATION 0xFFFFFFF0
345 * For report target port groups.
347 #define NUM_TARGET_PORT_GROUPS 2
349 #define CTL_WRITE_BUFFER_SIZE 262144
356 STAILQ_HEAD(,ctl_error_desc) error_list;
357 uint64_t error_serial;
358 struct ctl_softc *ctl_softc;
359 struct ctl_be_lun *be_lun;
360 struct ctl_backend_driver *backend;
361 struct ctl_lun_delay_info delay_info;
363 sbintime_t idle_time;
364 sbintime_t last_busy;
366 TAILQ_HEAD(ctl_ooaq, ctl_io_hdr) ooa_queue;
367 TAILQ_HEAD(ctl_blockq,ctl_io_hdr) blocked_queue;
368 STAILQ_ENTRY(ctl_lun) links;
370 uint32_t have_ca[CTL_MAX_INITIATORS >> 5];
371 struct scsi_sense_data pending_sense[CTL_MAX_INITIATORS];
373 ctl_ua_type *pending_ua[CTL_MAX_PORTS];
374 uint8_t ua_tpt_info[8];
376 struct ctl_mode_pages mode_pages;
377 struct ctl_log_pages log_pages;
378 struct ctl_lun_io_stats stats;
380 unsigned int PRGeneration;
381 uint64_t *pr_keys[CTL_MAX_PORTS];
385 uint8_t *write_buffer;
386 struct ctl_devid *lun_devid;
387 TAILQ_HEAD(tpc_lists, tpc_list) tpc_lists;
391 CTL_FLAG_ACTIVE_SHELF = 0x04
394 #define CTL_MAX_THREADS 16
397 struct mtx_padalign queue_lock;
398 struct ctl_softc *ctl_softc;
399 struct thread *thread;
400 STAILQ_HEAD(, ctl_io_hdr) incoming_queue;
401 STAILQ_HEAD(, ctl_io_hdr) rtr_queue;
402 STAILQ_HEAD(, ctl_io_hdr) done_queue;
403 STAILQ_HEAD(, ctl_io_hdr) isc_queue;
415 ctl_ha_link_state ha_link;
421 struct sysctl_ctx_list sysctl_ctx;
422 struct sysctl_oid *sysctl_tree;
424 struct proc *ctl_proc;
425 uint32_t ctl_lun_mask[(CTL_MAX_LUNS + 31) / 32];
426 struct ctl_lun *ctl_luns[CTL_MAX_LUNS];
427 uint32_t ctl_port_mask[(CTL_MAX_PORTS + 31) / 32];
428 STAILQ_HEAD(, ctl_lun) lun_list;
429 STAILQ_HEAD(, ctl_be_lun) pending_lun_queue;
430 uint32_t num_frontends;
431 STAILQ_HEAD(, ctl_frontend) fe_list;
433 STAILQ_HEAD(, ctl_port) port_list;
434 struct ctl_port *ctl_ports[CTL_MAX_PORTS];
435 uint32_t num_backends;
436 STAILQ_HEAD(, ctl_backend_driver) be_list;
437 struct uma_zone *io_zone;
438 uint32_t cur_pool_id;
439 struct ctl_thread threads[CTL_MAX_THREADS];
440 TAILQ_HEAD(tpc_tokens, tpc_token) tpc_tokens;
441 struct callout tpc_timeout;
447 extern const struct ctl_cmd_entry ctl_cmd_table[256];
449 uint32_t ctl_get_initindex(struct ctl_nexus *nexus);
450 int ctl_lun_map_init(struct ctl_port *port);
451 int ctl_lun_map_deinit(struct ctl_port *port);
452 int ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun);
453 int ctl_lun_map_unset(struct ctl_port *port, uint32_t plun);
454 uint32_t ctl_lun_map_from_port(struct ctl_port *port, uint32_t plun);
455 uint32_t ctl_lun_map_to_port(struct ctl_port *port, uint32_t glun);
456 int ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name,
457 uint32_t total_ctl_io, void **npool);
458 void ctl_pool_free(struct ctl_io_pool *pool);
459 int ctl_scsi_release(struct ctl_scsiio *ctsio);
460 int ctl_scsi_reserve(struct ctl_scsiio *ctsio);
461 int ctl_start_stop(struct ctl_scsiio *ctsio);
462 int ctl_sync_cache(struct ctl_scsiio *ctsio);
463 int ctl_format(struct ctl_scsiio *ctsio);
464 int ctl_read_buffer(struct ctl_scsiio *ctsio);
465 int ctl_write_buffer(struct ctl_scsiio *ctsio);
466 int ctl_write_same(struct ctl_scsiio *ctsio);
467 int ctl_unmap(struct ctl_scsiio *ctsio);
468 int ctl_mode_select(struct ctl_scsiio *ctsio);
469 int ctl_mode_sense(struct ctl_scsiio *ctsio);
470 int ctl_log_sense(struct ctl_scsiio *ctsio);
471 int ctl_read_capacity(struct ctl_scsiio *ctsio);
472 int ctl_read_capacity_16(struct ctl_scsiio *ctsio);
473 int ctl_read_defect(struct ctl_scsiio *ctsio);
474 int ctl_read_write(struct ctl_scsiio *ctsio);
475 int ctl_cnw(struct ctl_scsiio *ctsio);
476 int ctl_report_luns(struct ctl_scsiio *ctsio);
477 int ctl_request_sense(struct ctl_scsiio *ctsio);
478 int ctl_tur(struct ctl_scsiio *ctsio);
479 int ctl_verify(struct ctl_scsiio *ctsio);
480 int ctl_inquiry(struct ctl_scsiio *ctsio);
481 int ctl_persistent_reserve_in(struct ctl_scsiio *ctsio);
482 int ctl_persistent_reserve_out(struct ctl_scsiio *ctsio);
483 int ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio);
484 int ctl_report_supported_opcodes(struct ctl_scsiio *ctsio);
485 int ctl_report_supported_tmf(struct ctl_scsiio *ctsio);
486 int ctl_report_timestamp(struct ctl_scsiio *ctsio);
487 int ctl_get_lba_status(struct ctl_scsiio *ctsio);
489 void ctl_tpc_init(struct ctl_softc *softc);
490 void ctl_tpc_shutdown(struct ctl_softc *softc);
491 void ctl_tpc_lun_init(struct ctl_lun *lun);
492 void ctl_tpc_lun_shutdown(struct ctl_lun *lun);
493 int ctl_inquiry_evpd_tpc(struct ctl_scsiio *ctsio, int alloc_len);
494 int ctl_receive_copy_status_lid1(struct ctl_scsiio *ctsio);
495 int ctl_receive_copy_failure_details(struct ctl_scsiio *ctsio);
496 int ctl_receive_copy_status_lid4(struct ctl_scsiio *ctsio);
497 int ctl_receive_copy_operating_parameters(struct ctl_scsiio *ctsio);
498 int ctl_extended_copy_lid1(struct ctl_scsiio *ctsio);
499 int ctl_extended_copy_lid4(struct ctl_scsiio *ctsio);
500 int ctl_copy_operation_abort(struct ctl_scsiio *ctsio);
501 int ctl_populate_token(struct ctl_scsiio *ctsio);
502 int ctl_write_using_token(struct ctl_scsiio *ctsio);
503 int ctl_receive_rod_token_information(struct ctl_scsiio *ctsio);
504 int ctl_report_all_rod_tokens(struct ctl_scsiio *ctsio);
508 #endif /* _CTL_PRIVATE_H_ */