2 * Copyright (c) 2003-2009 Silicon Graphics International Corp.
3 * Copyright (c) 2012 The FreeBSD Foundation
6 * Portions of this software were developed by Edward Tomasz Napierala
7 * under sponsorship from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
16 * substantially similar to the "NO WARRANTY" disclaimer below
17 * ("Disclaimer") and any redistribution must be conditioned upon
18 * including a substantially similar Disclaimer requirement for further
19 * binary redistribution.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGES.
34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $
37 * CAM Target Layer, a SCSI device emulation subsystem.
39 * Author: Ken Merry <ken@FreeBSD.org>
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
47 #include <sys/param.h>
48 #include <sys/systm.h>
49 #include <sys/kernel.h>
50 #include <sys/types.h>
51 #include <sys/kthread.h>
53 #include <sys/fcntl.h>
55 #include <sys/module.h>
56 #include <sys/mutex.h>
57 #include <sys/condvar.h>
58 #include <sys/malloc.h>
60 #include <sys/ioccom.h>
61 #include <sys/queue.h>
64 #include <sys/endian.h>
65 #include <sys/sysctl.h>
68 #include <cam/scsi/scsi_all.h>
69 #include <cam/scsi/scsi_da.h>
70 #include <cam/ctl/ctl_io.h>
71 #include <cam/ctl/ctl.h>
72 #include <cam/ctl/ctl_frontend.h>
73 #include <cam/ctl/ctl_frontend_internal.h>
74 #include <cam/ctl/ctl_util.h>
75 #include <cam/ctl/ctl_backend.h>
76 #include <cam/ctl/ctl_ioctl.h>
77 #include <cam/ctl/ctl_ha.h>
78 #include <cam/ctl/ctl_private.h>
79 #include <cam/ctl/ctl_debug.h>
80 #include <cam/ctl/ctl_scsi_all.h>
81 #include <cam/ctl/ctl_error.h>
83 struct ctl_softc *control_softc = NULL;
86 * Size and alignment macros needed for Copan-specific HA hardware. These
87 * can go away when the HA code is re-written, and uses busdma for any
90 #define CTL_ALIGN_8B(target, source, type) \
91 if (((uint32_t)source & 0x7) != 0) \
92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\
94 target = (type)source;
96 #define CTL_SIZE_8B(target, size) \
97 if ((size & 0x7) != 0) \
98 target = size + (0x8 - (size & 0x7)); \
102 #define CTL_ALIGN_8B_MARGIN 16
105 * Template mode pages.
109 * Note that these are default values only. The actual values will be
110 * filled in when the user does a mode sense.
112 static struct copan_power_subpage power_page_default = {
113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF,
114 /*subpage*/ PWR_SUBPAGE_CODE,
115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00,
116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff},
117 /*page_version*/ PWR_VERSION,
119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS,
120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0,
121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
125 static struct copan_power_subpage power_page_changeable = {
126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF,
127 /*subpage*/ PWR_SUBPAGE_CODE,
128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00,
129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff},
132 /* max_active_luns*/ 0,
133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0,
134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
138 static struct copan_aps_subpage aps_page_default = {
139 APS_PAGE_CODE | SMPH_SPF, //page_code
140 APS_SUBPAGE_CODE, //subpage
141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00,
142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length
143 APS_VERSION, //page_version
145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
147 0, 0, 0, 0, 0} //reserved
150 static struct copan_aps_subpage aps_page_changeable = {
151 APS_PAGE_CODE | SMPH_SPF, //page_code
152 APS_SUBPAGE_CODE, //subpage
153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00,
154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length
157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
159 0, 0, 0, 0, 0} //reserved
162 static struct copan_debugconf_subpage debugconf_page_default = {
163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */
164 DBGCNF_SUBPAGE_CODE, /* subpage */
165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8,
166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */
167 DBGCNF_VERSION, /* page_version */
168 {CTL_TIME_IO_DEFAULT_SECS>>8,
169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */
172 static struct copan_debugconf_subpage debugconf_page_changeable = {
173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */
174 DBGCNF_SUBPAGE_CODE, /* subpage */
175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8,
176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */
177 0, /* page_version */
178 {0xff,0xff}, /* ctl_time_io_secs */
181 static struct scsi_format_page format_page_default = {
182 /*page_code*/SMS_FORMAT_DEVICE_PAGE,
183 /*page_length*/sizeof(struct scsi_format_page) - 2,
184 /*tracks_per_zone*/ {0, 0},
185 /*alt_sectors_per_zone*/ {0, 0},
186 /*alt_tracks_per_zone*/ {0, 0},
187 /*alt_tracks_per_lun*/ {0, 0},
188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff,
189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff},
190 /*bytes_per_sector*/ {0, 0},
191 /*interleave*/ {0, 0},
192 /*track_skew*/ {0, 0},
193 /*cylinder_skew*/ {0, 0},
195 /*reserved*/ {0, 0, 0}
198 static struct scsi_format_page format_page_changeable = {
199 /*page_code*/SMS_FORMAT_DEVICE_PAGE,
200 /*page_length*/sizeof(struct scsi_format_page) - 2,
201 /*tracks_per_zone*/ {0, 0},
202 /*alt_sectors_per_zone*/ {0, 0},
203 /*alt_tracks_per_zone*/ {0, 0},
204 /*alt_tracks_per_lun*/ {0, 0},
205 /*sectors_per_track*/ {0, 0},
206 /*bytes_per_sector*/ {0, 0},
207 /*interleave*/ {0, 0},
208 /*track_skew*/ {0, 0},
209 /*cylinder_skew*/ {0, 0},
211 /*reserved*/ {0, 0, 0}
214 static struct scsi_rigid_disk_page rigid_disk_page_default = {
215 /*page_code*/SMS_RIGID_DISK_PAGE,
216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2,
217 /*cylinders*/ {0, 0, 0},
218 /*heads*/ CTL_DEFAULT_HEADS,
219 /*start_write_precomp*/ {0, 0, 0},
220 /*start_reduced_current*/ {0, 0, 0},
221 /*step_rate*/ {0, 0},
222 /*landing_zone_cylinder*/ {0, 0, 0},
223 /*rpl*/ SRDP_RPL_DISABLED,
224 /*rotational_offset*/ 0,
226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff,
227 CTL_DEFAULT_ROTATION_RATE & 0xff},
231 static struct scsi_rigid_disk_page rigid_disk_page_changeable = {
232 /*page_code*/SMS_RIGID_DISK_PAGE,
233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2,
234 /*cylinders*/ {0, 0, 0},
236 /*start_write_precomp*/ {0, 0, 0},
237 /*start_reduced_current*/ {0, 0, 0},
238 /*step_rate*/ {0, 0},
239 /*landing_zone_cylinder*/ {0, 0, 0},
241 /*rotational_offset*/ 0,
243 /*rotation_rate*/ {0, 0},
247 static struct scsi_caching_page caching_page_default = {
248 /*page_code*/SMS_CACHING_PAGE,
249 /*page_length*/sizeof(struct scsi_caching_page) - 2,
250 /*flags1*/ SCP_DISC | SCP_WCE,
252 /*disable_pf_transfer_len*/ {0xff, 0xff},
253 /*min_prefetch*/ {0, 0},
254 /*max_prefetch*/ {0xff, 0xff},
255 /*max_pf_ceiling*/ {0xff, 0xff},
257 /*cache_segments*/ 0,
258 /*cache_seg_size*/ {0, 0},
260 /*non_cache_seg_size*/ {0, 0, 0}
263 static struct scsi_caching_page caching_page_changeable = {
264 /*page_code*/SMS_CACHING_PAGE,
265 /*page_length*/sizeof(struct scsi_caching_page) - 2,
268 /*disable_pf_transfer_len*/ {0, 0},
269 /*min_prefetch*/ {0, 0},
270 /*max_prefetch*/ {0, 0},
271 /*max_pf_ceiling*/ {0, 0},
273 /*cache_segments*/ 0,
274 /*cache_seg_size*/ {0, 0},
276 /*non_cache_seg_size*/ {0, 0, 0}
279 static struct scsi_control_page control_page_default = {
280 /*page_code*/SMS_CONTROL_MODE_PAGE,
281 /*page_length*/sizeof(struct scsi_control_page) - 2,
286 /*aen_holdoff_period*/{0, 0},
287 /*busy_timeout_period*/{0, 0},
288 /*extended_selftest_completion_time*/{0, 0}
291 static struct scsi_control_page control_page_changeable = {
292 /*page_code*/SMS_CONTROL_MODE_PAGE,
293 /*page_length*/sizeof(struct scsi_control_page) - 2,
298 /*aen_holdoff_period*/{0, 0},
299 /*busy_timeout_period*/{0, 0},
300 /*extended_selftest_completion_time*/{0, 0}
305 * XXX KDM move these into the softc.
307 static int rcv_sync_msg;
308 static int persis_offset;
309 static uint8_t ctl_pause_rtr;
310 static int ctl_is_single = 1;
311 static int index_to_aps_page;
313 SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer");
314 static int worker_threads = -1;
315 TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads);
316 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN,
317 &worker_threads, 1, "Number of worker threads");
318 static int verbose = 0;
319 TUNABLE_INT("kern.cam.ctl.verbose", &verbose);
320 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN,
321 &verbose, 0, "Show SCSI errors returned to initiator");
324 * Supported pages (0x00), Serial number (0x80), Device ID (0x83),
325 * SCSI Ports (0x88), Block limits (0xB0) and
326 * Logical Block Provisioning (0xB2)
328 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 6
330 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event,
332 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest);
333 static int ctl_init(void);
334 void ctl_shutdown(void);
335 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td);
336 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td);
337 static void ctl_ioctl_online(void *arg);
338 static void ctl_ioctl_offline(void *arg);
339 static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id);
340 static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id);
341 static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio);
342 static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio);
343 static int ctl_ioctl_submit_wait(union ctl_io *io);
344 static void ctl_ioctl_datamove(union ctl_io *io);
345 static void ctl_ioctl_done(union ctl_io *io);
346 static void ctl_ioctl_hard_startstop_callback(void *arg,
347 struct cfi_metatask *metatask);
348 static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask);
349 static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num,
350 struct ctl_ooa *ooa_hdr,
351 struct ctl_ooa_entry *kern_entries);
352 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
354 uint32_t ctl_get_resindex(struct ctl_nexus *nexus);
355 uint32_t ctl_port_idx(int port_num);
356 static uint32_t ctl_map_lun(int port_num, uint32_t lun);
357 static uint32_t ctl_map_lun_back(int port_num, uint32_t lun);
359 static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port,
360 uint32_t targ_target, uint32_t targ_lun,
362 static void ctl_kfree_io(union ctl_io *io);
364 static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun,
365 struct ctl_be_lun *be_lun, struct ctl_id target_id);
366 static int ctl_free_lun(struct ctl_lun *lun);
367 static void ctl_create_lun(struct ctl_be_lun *be_lun);
369 static void ctl_failover_change_pages(struct ctl_softc *softc,
370 struct ctl_scsiio *ctsio, int master);
373 static int ctl_do_mode_select(union ctl_io *io);
374 static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun,
375 uint64_t res_key, uint64_t sa_res_key,
376 uint8_t type, uint32_t residx,
377 struct ctl_scsiio *ctsio,
378 struct scsi_per_res_out *cdb,
379 struct scsi_per_res_out_parms* param);
380 static void ctl_pro_preempt_other(struct ctl_lun *lun,
381 union ctl_ha_msg *msg);
382 static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg);
383 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len);
384 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len);
385 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len);
386 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio,
388 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio,
390 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len);
391 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio);
392 static int ctl_inquiry_std(struct ctl_scsiio *ctsio);
393 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len);
394 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2);
395 static ctl_action ctl_check_for_blockage(union ctl_io *pending_io,
396 union ctl_io *ooa_io);
397 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io,
398 union ctl_io *starting_io);
399 static int ctl_check_blocked(struct ctl_lun *lun);
400 static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc,
402 const struct ctl_cmd_entry *entry,
403 struct ctl_scsiio *ctsio);
404 //static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc);
405 static void ctl_failover(void);
406 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc,
407 struct ctl_scsiio *ctsio);
408 static int ctl_scsiio(struct ctl_scsiio *ctsio);
410 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io);
411 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io,
412 ctl_ua_type ua_type);
413 static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io,
414 ctl_ua_type ua_type);
415 static int ctl_abort_task(union ctl_io *io);
416 static int ctl_abort_task_set(union ctl_io *io);
417 static int ctl_i_t_nexus_reset(union ctl_io *io);
418 static void ctl_run_task(union ctl_io *io);
420 static void ctl_datamove_timer_wakeup(void *arg);
421 static void ctl_done_timer_wakeup(void *arg);
422 #endif /* CTL_IO_DELAY */
424 static void ctl_send_datamove_done(union ctl_io *io, int have_lock);
425 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq);
426 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io);
427 static void ctl_datamove_remote_write(union ctl_io *io);
428 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io);
429 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq);
430 static int ctl_datamove_remote_sgl_setup(union ctl_io *io);
431 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command,
432 ctl_ha_dt_cb callback);
433 static void ctl_datamove_remote_read(union ctl_io *io);
434 static void ctl_datamove_remote(union ctl_io *io);
435 static int ctl_process_done(union ctl_io *io);
436 static void ctl_lun_thread(void *arg);
437 static void ctl_work_thread(void *arg);
438 static void ctl_enqueue_incoming(union ctl_io *io);
439 static void ctl_enqueue_rtr(union ctl_io *io);
440 static void ctl_enqueue_done(union ctl_io *io);
441 static void ctl_enqueue_isc(union ctl_io *io);
442 static const struct ctl_cmd_entry *
443 ctl_get_cmd_entry(struct ctl_scsiio *ctsio);
444 static const struct ctl_cmd_entry *
445 ctl_validate_command(struct ctl_scsiio *ctsio);
446 static int ctl_cmd_applicable(uint8_t lun_type,
447 const struct ctl_cmd_entry *entry);
450 * Load the serialization table. This isn't very pretty, but is probably
451 * the easiest way to do it.
453 #include "ctl_ser_table.c"
456 * We only need to define open, close and ioctl routines for this driver.
458 static struct cdevsw ctl_cdevsw = {
459 .d_version = D_VERSION,
462 .d_close = ctl_close,
463 .d_ioctl = ctl_ioctl,
468 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL");
469 MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests");
471 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *);
473 static moduledata_t ctl_moduledata = {
475 ctl_module_event_handler,
479 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD);
480 MODULE_VERSION(ctl, 1);
482 static struct ctl_frontend ioctl_frontend =
488 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc,
489 union ctl_ha_msg *msg_info)
491 struct ctl_scsiio *ctsio;
493 if (msg_info->hdr.original_sc == NULL) {
494 printf("%s: original_sc == NULL!\n", __func__);
495 /* XXX KDM now what? */
499 ctsio = &msg_info->hdr.original_sc->scsiio;
500 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE;
501 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO;
502 ctsio->io_hdr.status = msg_info->hdr.status;
503 ctsio->scsi_status = msg_info->scsi.scsi_status;
504 ctsio->sense_len = msg_info->scsi.sense_len;
505 ctsio->sense_residual = msg_info->scsi.sense_residual;
506 ctsio->residual = msg_info->scsi.residual;
507 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data,
508 sizeof(ctsio->sense_data));
509 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes,
510 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen));
511 ctl_enqueue_isc((union ctl_io *)ctsio);
515 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc,
516 union ctl_ha_msg *msg_info)
518 struct ctl_scsiio *ctsio;
520 if (msg_info->hdr.serializing_sc == NULL) {
521 printf("%s: serializing_sc == NULL!\n", __func__);
522 /* XXX KDM now what? */
526 ctsio = &msg_info->hdr.serializing_sc->scsiio;
529 * Attempt to catch the situation where an I/O has
530 * been freed, and we're using it again.
532 if (ctsio->io_hdr.io_type == 0xff) {
533 union ctl_io *tmp_io;
534 tmp_io = (union ctl_io *)ctsio;
535 printf("%s: %p use after free!\n", __func__,
537 printf("%s: type %d msg %d cdb %x iptl: "
538 "%d:%d:%d:%d tag 0x%04x "
539 "flag %#x status %x\n",
541 tmp_io->io_hdr.io_type,
542 tmp_io->io_hdr.msg_type,
543 tmp_io->scsiio.cdb[0],
544 tmp_io->io_hdr.nexus.initid.id,
545 tmp_io->io_hdr.nexus.targ_port,
546 tmp_io->io_hdr.nexus.targ_target.id,
547 tmp_io->io_hdr.nexus.targ_lun,
548 (tmp_io->io_hdr.io_type ==
550 tmp_io->taskio.tag_num :
551 tmp_io->scsiio.tag_num,
552 tmp_io->io_hdr.flags,
553 tmp_io->io_hdr.status);
556 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO;
557 ctl_enqueue_isc((union ctl_io *)ctsio);
561 * ISC (Inter Shelf Communication) event handler. Events from the HA
562 * subsystem come in here.
565 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param)
567 struct ctl_softc *ctl_softc;
569 struct ctl_prio *presio;
570 ctl_ha_status isc_status;
572 ctl_softc = control_softc;
577 printf("CTL: Isc Msg event %d\n", event);
579 if (event == CTL_HA_EVT_MSG_RECV) {
580 union ctl_ha_msg msg_info;
582 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info,
583 sizeof(msg_info), /*wait*/ 0);
585 printf("CTL: msg_type %d\n", msg_info.msg_type);
587 if (isc_status != 0) {
588 printf("Error receiving message, status = %d\n",
593 switch (msg_info.hdr.msg_type) {
594 case CTL_MSG_SERIALIZE:
596 printf("Serialize\n");
598 io = ctl_alloc_io((void *)ctl_softc->othersc_pool);
600 printf("ctl_isc_event_handler: can't allocate "
603 /* Need to set busy and send msg back */
604 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU;
605 msg_info.hdr.status = CTL_SCSI_ERROR;
606 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY;
607 msg_info.scsi.sense_len = 0;
608 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
609 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){
614 // populate ctsio from msg_info
615 io->io_hdr.io_type = CTL_IO_SCSI;
616 io->io_hdr.msg_type = CTL_MSG_SERIALIZE;
617 io->io_hdr.original_sc = msg_info.hdr.original_sc;
619 printf("pOrig %x\n", (int)msg_info.original_sc);
621 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC |
624 * If we're in serialization-only mode, we don't
625 * want to go through full done processing. Thus
628 * XXX KDM add another flag that is more specific.
630 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)
631 io->io_hdr.flags |= CTL_FLAG_INT_COPY;
632 io->io_hdr.nexus = msg_info.hdr.nexus;
634 printf("targ %d, port %d, iid %d, lun %d\n",
635 io->io_hdr.nexus.targ_target.id,
636 io->io_hdr.nexus.targ_port,
637 io->io_hdr.nexus.initid.id,
638 io->io_hdr.nexus.targ_lun);
640 io->scsiio.tag_num = msg_info.scsi.tag_num;
641 io->scsiio.tag_type = msg_info.scsi.tag_type;
642 memcpy(io->scsiio.cdb, msg_info.scsi.cdb,
644 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) {
645 const struct ctl_cmd_entry *entry;
647 entry = ctl_get_cmd_entry(&io->scsiio);
648 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK;
650 entry->flags & CTL_FLAG_DATA_MASK;
655 /* Performed on the Originating SC, XFER mode only */
656 case CTL_MSG_DATAMOVE: {
657 struct ctl_sg_entry *sgl;
660 io = msg_info.hdr.original_sc;
662 printf("%s: original_sc == NULL!\n", __func__);
663 /* XXX KDM do something here */
666 io->io_hdr.msg_type = CTL_MSG_DATAMOVE;
667 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE;
669 * Keep track of this, we need to send it back over
670 * when the datamove is complete.
672 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc;
674 if (msg_info.dt.sg_sequence == 0) {
676 * XXX KDM we use the preallocated S/G list
677 * here, but we'll need to change this to
678 * dynamic allocation if we need larger S/G
681 if (msg_info.dt.kern_sg_entries >
682 sizeof(io->io_hdr.remote_sglist) /
683 sizeof(io->io_hdr.remote_sglist[0])) {
684 printf("%s: number of S/G entries "
685 "needed %u > allocated num %zd\n",
687 msg_info.dt.kern_sg_entries,
688 sizeof(io->io_hdr.remote_sglist)/
689 sizeof(io->io_hdr.remote_sglist[0]));
692 * XXX KDM send a message back to
693 * the other side to shut down the
694 * DMA. The error will come back
695 * through via the normal channel.
699 sgl = io->io_hdr.remote_sglist;
701 sizeof(io->io_hdr.remote_sglist));
703 io->scsiio.kern_data_ptr = (uint8_t *)sgl;
705 io->scsiio.kern_sg_entries =
706 msg_info.dt.kern_sg_entries;
707 io->scsiio.rem_sg_entries =
708 msg_info.dt.kern_sg_entries;
709 io->scsiio.kern_data_len =
710 msg_info.dt.kern_data_len;
711 io->scsiio.kern_total_len =
712 msg_info.dt.kern_total_len;
713 io->scsiio.kern_data_resid =
714 msg_info.dt.kern_data_resid;
715 io->scsiio.kern_rel_offset =
716 msg_info.dt.kern_rel_offset;
718 * Clear out per-DMA flags.
720 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK;
722 * Add per-DMA flags that are set for this
723 * particular DMA request.
725 io->io_hdr.flags |= msg_info.dt.flags &
728 sgl = (struct ctl_sg_entry *)
729 io->scsiio.kern_data_ptr;
731 for (i = msg_info.dt.sent_sg_entries, j = 0;
732 i < (msg_info.dt.sent_sg_entries +
733 msg_info.dt.cur_sg_entries); i++, j++) {
734 sgl[i].addr = msg_info.dt.sg_list[j].addr;
735 sgl[i].len = msg_info.dt.sg_list[j].len;
738 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n",
740 msg_info.dt.sg_list[j].addr,
741 msg_info.dt.sg_list[j].len,
742 sgl[i].addr, sgl[i].len, j, i);
746 memcpy(&sgl[msg_info.dt.sent_sg_entries],
748 sizeof(*sgl) * msg_info.dt.cur_sg_entries);
752 * If this is the last piece of the I/O, we've got
753 * the full S/G list. Queue processing in the thread.
754 * Otherwise wait for the next piece.
756 if (msg_info.dt.sg_last != 0)
760 /* Performed on the Serializing (primary) SC, XFER mode only */
761 case CTL_MSG_DATAMOVE_DONE: {
762 if (msg_info.hdr.serializing_sc == NULL) {
763 printf("%s: serializing_sc == NULL!\n",
765 /* XXX KDM now what? */
769 * We grab the sense information here in case
770 * there was a failure, so we can return status
771 * back to the initiator.
773 io = msg_info.hdr.serializing_sc;
774 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE;
775 io->io_hdr.status = msg_info.hdr.status;
776 io->scsiio.scsi_status = msg_info.scsi.scsi_status;
777 io->scsiio.sense_len = msg_info.scsi.sense_len;
778 io->scsiio.sense_residual =msg_info.scsi.sense_residual;
779 io->io_hdr.port_status = msg_info.scsi.fetd_status;
780 io->scsiio.residual = msg_info.scsi.residual;
781 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data,
782 sizeof(io->scsiio.sense_data));
787 /* Preformed on Originating SC, SER_ONLY mode */
789 io = msg_info.hdr.original_sc;
791 printf("%s: Major Bummer\n", __func__);
795 printf("pOrig %x\n",(int) ctsio);
798 io->io_hdr.msg_type = CTL_MSG_R2R;
799 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc;
804 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY
806 * Performed on the Originating (i.e. secondary) SC in XFER
809 case CTL_MSG_FINISH_IO:
810 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER)
811 ctl_isc_handler_finish_xfer(ctl_softc,
814 ctl_isc_handler_finish_ser_only(ctl_softc,
818 /* Preformed on Originating SC */
819 case CTL_MSG_BAD_JUJU:
820 io = msg_info.hdr.original_sc;
822 printf("%s: Bad JUJU!, original_sc is NULL!\n",
826 ctl_copy_sense_data(&msg_info, io);
828 * IO should have already been cleaned up on other
829 * SC so clear this flag so we won't send a message
830 * back to finish the IO there.
832 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
833 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE;
835 /* io = msg_info.hdr.serializing_sc; */
836 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU;
840 /* Handle resets sent from the other side */
841 case CTL_MSG_MANAGE_TASKS: {
842 struct ctl_taskio *taskio;
843 taskio = (struct ctl_taskio *)ctl_alloc_io(
844 (void *)ctl_softc->othersc_pool);
845 if (taskio == NULL) {
846 printf("ctl_isc_event_handler: can't allocate "
849 /* should I just call the proper reset func
853 ctl_zero_io((union ctl_io *)taskio);
854 taskio->io_hdr.io_type = CTL_IO_TASK;
855 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC;
856 taskio->io_hdr.nexus = msg_info.hdr.nexus;
857 taskio->task_action = msg_info.task.task_action;
858 taskio->tag_num = msg_info.task.tag_num;
859 taskio->tag_type = msg_info.task.tag_type;
861 taskio->io_hdr.start_time = time_uptime;
862 getbintime(&taskio->io_hdr.start_bt);
864 cs_prof_gettime(&taskio->io_hdr.start_ticks);
866 #endif /* CTL_TIME_IO */
867 ctl_run_task((union ctl_io *)taskio);
870 /* Persistent Reserve action which needs attention */
871 case CTL_MSG_PERS_ACTION:
872 presio = (struct ctl_prio *)ctl_alloc_io(
873 (void *)ctl_softc->othersc_pool);
874 if (presio == NULL) {
875 printf("ctl_isc_event_handler: can't allocate "
878 /* Need to set busy and send msg back */
881 ctl_zero_io((union ctl_io *)presio);
882 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION;
883 presio->pr_msg = msg_info.pr;
884 ctl_enqueue_isc((union ctl_io *)presio);
886 case CTL_MSG_SYNC_FE:
889 case CTL_MSG_APS_LOCK: {
890 // It's quicker to execute this then to
893 struct ctl_page_index *page_index;
894 struct copan_aps_subpage *current_sp;
897 targ_lun = msg_info.hdr.nexus.targ_mapped_lun;
898 lun = ctl_softc->ctl_luns[targ_lun];
899 mtx_lock(&lun->lun_lock);
900 page_index = &lun->mode_pages.index[index_to_aps_page];
901 current_sp = (struct copan_aps_subpage *)
902 (page_index->page_data +
903 (page_index->page_len * CTL_PAGE_CURRENT));
905 current_sp->lock_active = msg_info.aps.lock_flag;
906 mtx_unlock(&lun->lun_lock);
910 printf("How did I get here?\n");
912 } else if (event == CTL_HA_EVT_MSG_SENT) {
913 if (param != CTL_HA_STATUS_SUCCESS) {
914 printf("Bad status from ctl_ha_msg_send status %d\n",
918 } else if (event == CTL_HA_EVT_DISCONNECT) {
919 printf("CTL: Got a disconnect from Isc\n");
922 printf("ctl_isc_event_handler: Unknown event %d\n", event);
931 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest)
933 struct scsi_sense_data *sense;
935 sense = &dest->scsiio.sense_data;
936 bcopy(&src->scsi.sense_data, sense, sizeof(*sense));
937 dest->scsiio.scsi_status = src->scsi.scsi_status;
938 dest->scsiio.sense_len = src->scsi.sense_len;
939 dest->io_hdr.status = src->hdr.status;
945 struct ctl_softc *softc;
946 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool;
947 struct ctl_port *port;
949 int i, error, retval;
956 control_softc = malloc(sizeof(*control_softc), M_DEVBUF,
958 softc = control_softc;
960 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600,
963 softc->dev->si_drv1 = softc;
966 * By default, return a "bad LUN" peripheral qualifier for unknown
967 * LUNs. The user can override this default using the tunable or
968 * sysctl. See the comment in ctl_inquiry_std() for more details.
970 softc->inquiry_pq_no_lun = 1;
971 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun",
972 &softc->inquiry_pq_no_lun);
973 sysctl_ctx_init(&softc->sysctl_ctx);
974 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
975 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl",
976 CTLFLAG_RD, 0, "CAM Target Layer");
978 if (softc->sysctl_tree == NULL) {
979 printf("%s: unable to allocate sysctl tree\n", __func__);
980 destroy_dev(softc->dev);
981 free(control_softc, M_DEVBUF);
982 control_softc = NULL;
986 SYSCTL_ADD_INT(&softc->sysctl_ctx,
987 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO,
988 "inquiry_pq_no_lun", CTLFLAG_RW,
989 &softc->inquiry_pq_no_lun, 0,
990 "Report no lun possible for invalid LUNs");
992 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF);
993 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF);
994 softc->open_count = 0;
997 * Default to actually sending a SYNCHRONIZE CACHE command down to
1000 softc->flags = CTL_FLAG_REAL_SYNC;
1003 * In Copan's HA scheme, the "master" and "slave" roles are
1004 * figured out through the slot the controller is in. Although it
1005 * is an active/active system, someone has to be in charge.
1008 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id);
1012 softc->flags |= CTL_FLAG_MASTER_SHELF;
1015 persis_offset = CTL_MAX_INITIATORS;
1018 * XXX KDM need to figure out where we want to get our target ID
1019 * and WWID. Is it different on each port?
1021 softc->target.id = 0;
1022 softc->target.wwid[0] = 0x12345678;
1023 softc->target.wwid[1] = 0x87654321;
1024 STAILQ_INIT(&softc->lun_list);
1025 STAILQ_INIT(&softc->pending_lun_queue);
1026 STAILQ_INIT(&softc->fe_list);
1027 STAILQ_INIT(&softc->port_list);
1028 STAILQ_INIT(&softc->be_list);
1029 STAILQ_INIT(&softc->io_pools);
1031 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL,
1032 &internal_pool)!= 0){
1033 printf("ctl: can't allocate %d entry internal pool, "
1034 "exiting\n", CTL_POOL_ENTRIES_INTERNAL);
1038 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY,
1039 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) {
1040 printf("ctl: can't allocate %d entry emergency pool, "
1041 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY);
1042 ctl_pool_free(internal_pool);
1046 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC,
1049 printf("ctl: can't allocate %d entry other SC pool, "
1050 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC);
1051 ctl_pool_free(internal_pool);
1052 ctl_pool_free(emergency_pool);
1056 softc->internal_pool = internal_pool;
1057 softc->emergency_pool = emergency_pool;
1058 softc->othersc_pool = other_pool;
1060 if (worker_threads <= 0)
1061 worker_threads = max(1, mp_ncpus / 4);
1062 if (worker_threads > CTL_MAX_THREADS)
1063 worker_threads = CTL_MAX_THREADS;
1065 for (i = 0; i < worker_threads; i++) {
1066 struct ctl_thread *thr = &softc->threads[i];
1068 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF);
1069 thr->ctl_softc = softc;
1070 STAILQ_INIT(&thr->incoming_queue);
1071 STAILQ_INIT(&thr->rtr_queue);
1072 STAILQ_INIT(&thr->done_queue);
1073 STAILQ_INIT(&thr->isc_queue);
1075 error = kproc_kthread_add(ctl_work_thread, thr,
1076 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i);
1078 printf("error creating CTL work thread!\n");
1079 ctl_pool_free(internal_pool);
1080 ctl_pool_free(emergency_pool);
1081 ctl_pool_free(other_pool);
1085 error = kproc_kthread_add(ctl_lun_thread, softc,
1086 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun");
1088 printf("error creating CTL lun thread!\n");
1089 ctl_pool_free(internal_pool);
1090 ctl_pool_free(emergency_pool);
1091 ctl_pool_free(other_pool);
1095 printf("ctl: CAM Target Layer loaded\n");
1098 * Initialize the ioctl front end.
1100 ctl_frontend_register(&ioctl_frontend);
1101 port = &softc->ioctl_info.port;
1102 port->frontend = &ioctl_frontend;
1103 sprintf(softc->ioctl_info.port_name, "ioctl");
1104 port->port_type = CTL_PORT_IOCTL;
1105 port->num_requested_ctl_io = 100;
1106 port->port_name = softc->ioctl_info.port_name;
1107 port->port_online = ctl_ioctl_online;
1108 port->port_offline = ctl_ioctl_offline;
1109 port->onoff_arg = &softc->ioctl_info;
1110 port->lun_enable = ctl_ioctl_lun_enable;
1111 port->lun_disable = ctl_ioctl_lun_disable;
1112 port->targ_lun_arg = &softc->ioctl_info;
1113 port->fe_datamove = ctl_ioctl_datamove;
1114 port->fe_done = ctl_ioctl_done;
1115 port->max_targets = 15;
1116 port->max_target_id = 15;
1118 if (ctl_port_register(&softc->ioctl_info.port,
1119 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) {
1120 printf("ctl: ioctl front end registration failed, will "
1121 "continue anyway\n");
1125 if (sizeof(struct callout) > CTL_TIMER_BYTES) {
1126 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n",
1127 sizeof(struct callout), CTL_TIMER_BYTES);
1130 #endif /* CTL_IO_DELAY */
1138 struct ctl_softc *softc;
1139 struct ctl_lun *lun, *next_lun;
1140 struct ctl_io_pool *pool;
1142 softc = (struct ctl_softc *)control_softc;
1144 if (ctl_port_deregister(&softc->ioctl_info.port) != 0)
1145 printf("ctl: ioctl front end deregistration failed\n");
1147 mtx_lock(&softc->ctl_lock);
1152 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){
1153 next_lun = STAILQ_NEXT(lun, links);
1157 mtx_unlock(&softc->ctl_lock);
1159 ctl_frontend_deregister(&ioctl_frontend);
1162 * This will rip the rug out from under any FETDs or anyone else
1163 * that has a pool allocated. Since we increment our module
1164 * refcount any time someone outside the main CTL module allocates
1165 * a pool, we shouldn't have any problems here. The user won't be
1166 * able to unload the CTL module until client modules have
1167 * successfully unloaded.
1169 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL)
1170 ctl_pool_free(pool);
1173 ctl_shutdown_thread(softc->work_thread);
1174 mtx_destroy(&softc->queue_lock);
1177 mtx_destroy(&softc->pool_lock);
1178 mtx_destroy(&softc->ctl_lock);
1180 destroy_dev(softc->dev);
1182 sysctl_ctx_free(&softc->sysctl_ctx);
1184 free(control_softc, M_DEVBUF);
1185 control_softc = NULL;
1188 printf("ctl: CAM Target Layer unloaded\n");
1192 ctl_module_event_handler(module_t mod, int what, void *arg)
1197 return (ctl_init());
1201 return (EOPNOTSUPP);
1206 * XXX KDM should we do some access checks here? Bump a reference count to
1207 * prevent a CTL module from being unloaded while someone has it open?
1210 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td)
1216 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td)
1222 ctl_port_enable(ctl_port_type port_type)
1224 struct ctl_softc *softc;
1225 struct ctl_port *port;
1227 if (ctl_is_single == 0) {
1228 union ctl_ha_msg msg_info;
1232 printf("%s: HA mode, synchronizing frontend enable\n",
1235 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE;
1236 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
1237 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) {
1238 printf("Sync msg send error retval %d\n", isc_retval);
1240 if (!rcv_sync_msg) {
1241 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info,
1242 sizeof(msg_info), 1);
1245 printf("CTL:Frontend Enable\n");
1247 printf("%s: single mode, skipping frontend synchronization\n",
1252 softc = control_softc;
1254 STAILQ_FOREACH(port, &softc->port_list, links) {
1255 if (port_type & port->port_type)
1258 printf("port %d\n", port->targ_port);
1260 ctl_port_online(port);
1268 ctl_port_disable(ctl_port_type port_type)
1270 struct ctl_softc *softc;
1271 struct ctl_port *port;
1273 softc = control_softc;
1275 STAILQ_FOREACH(port, &softc->port_list, links) {
1276 if (port_type & port->port_type)
1277 ctl_port_offline(port);
1284 * Returns 0 for success, 1 for failure.
1285 * Currently the only failure mode is if there aren't enough entries
1286 * allocated. So, in case of a failure, look at num_entries_dropped,
1287 * reallocate and try again.
1290 ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced,
1291 int *num_entries_filled, int *num_entries_dropped,
1292 ctl_port_type port_type, int no_virtual)
1294 struct ctl_softc *softc;
1295 struct ctl_port *port;
1296 int entries_dropped, entries_filled;
1300 softc = control_softc;
1304 entries_dropped = 0;
1307 mtx_lock(&softc->ctl_lock);
1308 STAILQ_FOREACH(port, &softc->port_list, links) {
1309 struct ctl_port_entry *entry;
1311 if ((port->port_type & port_type) == 0)
1314 if ((no_virtual != 0)
1315 && (port->virtual_port != 0))
1318 if (entries_filled >= num_entries_alloced) {
1322 entry = &entries[i];
1324 entry->port_type = port->port_type;
1325 strlcpy(entry->port_name, port->port_name,
1326 sizeof(entry->port_name));
1327 entry->physical_port = port->physical_port;
1328 entry->virtual_port = port->virtual_port;
1329 entry->wwnn = port->wwnn;
1330 entry->wwpn = port->wwpn;
1336 mtx_unlock(&softc->ctl_lock);
1338 if (entries_dropped > 0)
1341 *num_entries_dropped = entries_dropped;
1342 *num_entries_filled = entries_filled;
1348 ctl_ioctl_online(void *arg)
1350 struct ctl_ioctl_info *ioctl_info;
1352 ioctl_info = (struct ctl_ioctl_info *)arg;
1354 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED;
1358 ctl_ioctl_offline(void *arg)
1360 struct ctl_ioctl_info *ioctl_info;
1362 ioctl_info = (struct ctl_ioctl_info *)arg;
1364 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED;
1368 * Remove an initiator by port number and initiator ID.
1369 * Returns 0 for success, -1 for failure.
1372 ctl_remove_initiator(struct ctl_port *port, int iid)
1374 struct ctl_softc *softc = control_softc;
1376 mtx_assert(&softc->ctl_lock, MA_NOTOWNED);
1378 if (iid > CTL_MAX_INIT_PER_PORT) {
1379 printf("%s: initiator ID %u > maximun %u!\n",
1380 __func__, iid, CTL_MAX_INIT_PER_PORT);
1384 mtx_lock(&softc->ctl_lock);
1385 port->wwpn_iid[iid].in_use--;
1386 port->wwpn_iid[iid].last_use = time_uptime;
1387 mtx_unlock(&softc->ctl_lock);
1393 * Add an initiator to the initiator map.
1394 * Returns iid for success, < 0 for failure.
1397 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name)
1399 struct ctl_softc *softc = control_softc;
1403 mtx_assert(&softc->ctl_lock, MA_NOTOWNED);
1405 if (iid >= CTL_MAX_INIT_PER_PORT) {
1406 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n",
1407 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT);
1412 mtx_lock(&softc->ctl_lock);
1414 if (iid < 0 && (wwpn != 0 || name != NULL)) {
1415 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) {
1416 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) {
1420 if (name != NULL && port->wwpn_iid[i].name != NULL &&
1421 strcmp(name, port->wwpn_iid[i].name) == 0) {
1429 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) {
1430 if (port->wwpn_iid[i].in_use == 0 &&
1431 port->wwpn_iid[i].wwpn == 0 &&
1432 port->wwpn_iid[i].name == NULL) {
1441 best_time = INT32_MAX;
1442 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) {
1443 if (port->wwpn_iid[i].in_use == 0) {
1444 if (port->wwpn_iid[i].last_use < best_time) {
1446 best_time = port->wwpn_iid[i].last_use;
1454 mtx_unlock(&softc->ctl_lock);
1459 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) {
1461 * This is not an error yet.
1463 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) {
1465 printf("%s: port %d iid %u WWPN %#jx arrived"
1466 " again\n", __func__, port->targ_port,
1467 iid, (uintmax_t)wwpn);
1471 if (name != NULL && port->wwpn_iid[iid].name != NULL &&
1472 strcmp(name, port->wwpn_iid[iid].name) == 0) {
1474 printf("%s: port %d iid %u name '%s' arrived"
1475 " again\n", __func__, port->targ_port,
1482 * This is an error, but what do we do about it? The
1483 * driver is telling us we have a new WWPN for this
1484 * initiator ID, so we pretty much need to use it.
1486 printf("%s: port %d iid %u WWPN %#jx '%s' arrived,"
1487 " but WWPN %#jx '%s' is still at that address\n",
1488 __func__, port->targ_port, iid, wwpn, name,
1489 (uintmax_t)port->wwpn_iid[iid].wwpn,
1490 port->wwpn_iid[iid].name);
1493 * XXX KDM clear have_ca and ua_pending on each LUN for
1498 free(port->wwpn_iid[iid].name, M_CTL);
1499 port->wwpn_iid[iid].name = name;
1500 port->wwpn_iid[iid].wwpn = wwpn;
1501 port->wwpn_iid[iid].in_use++;
1502 mtx_unlock(&softc->ctl_lock);
1508 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf)
1512 switch (port->port_type) {
1515 struct scsi_transportid_fcp *id =
1516 (struct scsi_transportid_fcp *)buf;
1517 if (port->wwpn_iid[iid].wwpn == 0)
1519 memset(id, 0, sizeof(*id));
1520 id->format_protocol = SCSI_PROTO_FC;
1521 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name);
1522 return (sizeof(*id));
1524 case CTL_PORT_ISCSI:
1526 struct scsi_transportid_iscsi_port *id =
1527 (struct scsi_transportid_iscsi_port *)buf;
1528 if (port->wwpn_iid[iid].name == NULL)
1531 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT |
1533 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1;
1534 len = roundup2(min(len, 252), 4);
1535 scsi_ulto2b(len, id->additional_length);
1536 return (sizeof(*id) + len);
1540 struct scsi_transportid_sas *id =
1541 (struct scsi_transportid_sas *)buf;
1542 if (port->wwpn_iid[iid].wwpn == 0)
1544 memset(id, 0, sizeof(*id));
1545 id->format_protocol = SCSI_PROTO_SAS;
1546 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address);
1547 return (sizeof(*id));
1551 struct scsi_transportid_spi *id =
1552 (struct scsi_transportid_spi *)buf;
1553 memset(id, 0, sizeof(*id));
1554 id->format_protocol = SCSI_PROTO_SPI;
1555 scsi_ulto2b(iid, id->scsi_addr);
1556 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id);
1557 return (sizeof(*id));
1563 ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id)
1569 ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id)
1575 * Data movement routine for the CTL ioctl frontend port.
1578 ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio)
1580 struct ctl_sg_entry *ext_sglist, *kern_sglist;
1581 struct ctl_sg_entry ext_entry, kern_entry;
1582 int ext_sglen, ext_sg_entries, kern_sg_entries;
1583 int ext_sg_start, ext_offset;
1584 int len_to_copy, len_copied;
1585 int kern_watermark, ext_watermark;
1586 int ext_sglist_malloced;
1589 ext_sglist_malloced = 0;
1593 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n"));
1596 * If this flag is set, fake the data transfer.
1598 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) {
1599 ctsio->ext_data_filled = ctsio->ext_data_len;
1604 * To simplify things here, if we have a single buffer, stick it in
1605 * a S/G entry and just make it a single entry S/G list.
1607 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) {
1610 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist);
1612 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL,
1614 ext_sglist_malloced = 1;
1615 if (copyin(ctsio->ext_data_ptr, ext_sglist,
1617 ctl_set_internal_failure(ctsio,
1622 ext_sg_entries = ctsio->ext_sg_entries;
1624 for (i = 0; i < ext_sg_entries; i++) {
1625 if ((len_seen + ext_sglist[i].len) >=
1626 ctsio->ext_data_filled) {
1628 ext_offset = ctsio->ext_data_filled - len_seen;
1631 len_seen += ext_sglist[i].len;
1634 ext_sglist = &ext_entry;
1635 ext_sglist->addr = ctsio->ext_data_ptr;
1636 ext_sglist->len = ctsio->ext_data_len;
1639 ext_offset = ctsio->ext_data_filled;
1642 if (ctsio->kern_sg_entries > 0) {
1643 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr;
1644 kern_sg_entries = ctsio->kern_sg_entries;
1646 kern_sglist = &kern_entry;
1647 kern_sglist->addr = ctsio->kern_data_ptr;
1648 kern_sglist->len = ctsio->kern_data_len;
1649 kern_sg_entries = 1;
1654 ext_watermark = ext_offset;
1656 for (i = ext_sg_start, j = 0;
1657 i < ext_sg_entries && j < kern_sg_entries;) {
1658 uint8_t *ext_ptr, *kern_ptr;
1660 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark,
1661 kern_sglist[j].len - kern_watermark);
1663 ext_ptr = (uint8_t *)ext_sglist[i].addr;
1664 ext_ptr = ext_ptr + ext_watermark;
1665 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) {
1669 panic("need to implement bus address support");
1671 kern_ptr = bus_to_virt(kern_sglist[j].addr);
1674 kern_ptr = (uint8_t *)kern_sglist[j].addr;
1675 kern_ptr = kern_ptr + kern_watermark;
1677 kern_watermark += len_to_copy;
1678 ext_watermark += len_to_copy;
1680 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) ==
1682 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d "
1683 "bytes to user\n", len_to_copy));
1684 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p "
1685 "to %p\n", kern_ptr, ext_ptr));
1686 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) {
1687 ctl_set_internal_failure(ctsio,
1693 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d "
1694 "bytes from user\n", len_to_copy));
1695 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p "
1696 "to %p\n", ext_ptr, kern_ptr));
1697 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){
1698 ctl_set_internal_failure(ctsio,
1705 len_copied += len_to_copy;
1707 if (ext_sglist[i].len == ext_watermark) {
1712 if (kern_sglist[j].len == kern_watermark) {
1718 ctsio->ext_data_filled += len_copied;
1720 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, "
1721 "kern_sg_entries: %d\n", ext_sg_entries,
1723 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, "
1724 "kern_data_len = %d\n", ctsio->ext_data_len,
1725 ctsio->kern_data_len));
1728 /* XXX KDM set residual?? */
1731 if (ext_sglist_malloced != 0)
1732 free(ext_sglist, M_CTL);
1734 return (CTL_RETVAL_COMPLETE);
1738 * Serialize a command that went down the "wrong" side, and so was sent to
1739 * this controller for execution. The logic is a little different than the
1740 * standard case in ctl_scsiio_precheck(). Errors in this case need to get
1741 * sent back to the other side, but in the success case, we execute the
1742 * command on this side (XFER mode) or tell the other side to execute it
1746 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio)
1748 struct ctl_softc *ctl_softc;
1749 union ctl_ha_msg msg_info;
1750 struct ctl_lun *lun;
1754 ctl_softc = control_softc;
1756 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun;
1757 lun = ctl_softc->ctl_luns[targ_lun];
1761 * Why isn't LUN defined? The other side wouldn't
1762 * send a cmd if the LUN is undefined.
1764 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__);
1766 /* "Logical unit not supported" */
1767 ctl_set_sense_data(&msg_info.scsi.sense_data,
1769 /*sense_format*/SSD_TYPE_NONE,
1770 /*current_error*/ 1,
1771 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1776 msg_info.scsi.sense_len = SSD_FULL_SIZE;
1777 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND;
1778 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
1779 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc;
1780 msg_info.hdr.serializing_sc = NULL;
1781 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU;
1782 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
1783 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) {
1789 mtx_lock(&lun->lun_lock);
1790 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links);
1792 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio,
1793 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq,
1795 case CTL_ACTION_BLOCK:
1796 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED;
1797 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr,
1800 case CTL_ACTION_PASS:
1801 case CTL_ACTION_SKIP:
1802 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) {
1803 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR;
1804 ctl_enqueue_rtr((union ctl_io *)ctsio);
1807 /* send msg back to other side */
1808 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc;
1809 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio;
1810 msg_info.hdr.msg_type = CTL_MSG_R2R;
1812 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc);
1814 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
1815 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) {
1819 case CTL_ACTION_OVERLAP:
1820 /* OVERLAPPED COMMANDS ATTEMPTED */
1821 ctl_set_sense_data(&msg_info.scsi.sense_data,
1823 /*sense_format*/SSD_TYPE_NONE,
1824 /*current_error*/ 1,
1825 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1830 msg_info.scsi.sense_len = SSD_FULL_SIZE;
1831 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND;
1832 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
1833 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc;
1834 msg_info.hdr.serializing_sc = NULL;
1835 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU;
1837 printf("BAD JUJU:Major Bummer Overlap\n");
1839 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links);
1841 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
1842 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) {
1845 case CTL_ACTION_OVERLAP_TAG:
1846 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */
1847 ctl_set_sense_data(&msg_info.scsi.sense_data,
1849 /*sense_format*/SSD_TYPE_NONE,
1850 /*current_error*/ 1,
1851 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
1853 /*ascq*/ ctsio->tag_num & 0xff,
1856 msg_info.scsi.sense_len = SSD_FULL_SIZE;
1857 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND;
1858 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
1859 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc;
1860 msg_info.hdr.serializing_sc = NULL;
1861 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU;
1863 printf("BAD JUJU:Major Bummer Overlap Tag\n");
1865 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links);
1867 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
1868 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) {
1871 case CTL_ACTION_ERROR:
1873 /* "Internal target failure" */
1874 ctl_set_sense_data(&msg_info.scsi.sense_data,
1876 /*sense_format*/SSD_TYPE_NONE,
1877 /*current_error*/ 1,
1878 /*sense_key*/ SSD_KEY_HARDWARE_ERROR,
1883 msg_info.scsi.sense_len = SSD_FULL_SIZE;
1884 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND;
1885 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
1886 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc;
1887 msg_info.hdr.serializing_sc = NULL;
1888 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU;
1890 printf("BAD JUJU:Major Bummer HW Error\n");
1892 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links);
1894 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info,
1895 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) {
1899 mtx_unlock(&lun->lun_lock);
1904 ctl_ioctl_submit_wait(union ctl_io *io)
1906 struct ctl_fe_ioctl_params params;
1907 ctl_fe_ioctl_state last_state;
1912 bzero(¶ms, sizeof(params));
1914 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF);
1915 cv_init(¶ms.sem, "ctlioccv");
1916 params.state = CTL_IOCTL_INPROG;
1917 last_state = params.state;
1919 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms;
1921 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n"));
1923 /* This shouldn't happen */
1924 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE)
1930 mtx_lock(¶ms.ioctl_mtx);
1932 * Check the state here, and don't sleep if the state has
1933 * already changed (i.e. wakeup has already occured, but we
1934 * weren't waiting yet).
1936 if (params.state == last_state) {
1937 /* XXX KDM cv_wait_sig instead? */
1938 cv_wait(¶ms.sem, ¶ms.ioctl_mtx);
1940 last_state = params.state;
1942 switch (params.state) {
1943 case CTL_IOCTL_INPROG:
1944 /* Why did we wake up? */
1945 /* XXX KDM error here? */
1946 mtx_unlock(¶ms.ioctl_mtx);
1948 case CTL_IOCTL_DATAMOVE:
1949 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n"));
1952 * change last_state back to INPROG to avoid
1953 * deadlock on subsequent data moves.
1955 params.state = last_state = CTL_IOCTL_INPROG;
1957 mtx_unlock(¶ms.ioctl_mtx);
1958 ctl_ioctl_do_datamove(&io->scsiio);
1960 * Note that in some cases, most notably writes,
1961 * this will queue the I/O and call us back later.
1962 * In other cases, generally reads, this routine
1963 * will immediately call back and wake us up,
1964 * probably using our own context.
1966 io->scsiio.be_move_done(io);
1968 case CTL_IOCTL_DONE:
1969 mtx_unlock(¶ms.ioctl_mtx);
1970 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n"));
1974 mtx_unlock(¶ms.ioctl_mtx);
1975 /* XXX KDM error here? */
1978 } while (done == 0);
1980 mtx_destroy(¶ms.ioctl_mtx);
1981 cv_destroy(¶ms.sem);
1983 return (CTL_RETVAL_COMPLETE);
1987 ctl_ioctl_datamove(union ctl_io *io)
1989 struct ctl_fe_ioctl_params *params;
1991 params = (struct ctl_fe_ioctl_params *)
1992 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
1994 mtx_lock(¶ms->ioctl_mtx);
1995 params->state = CTL_IOCTL_DATAMOVE;
1996 cv_broadcast(¶ms->sem);
1997 mtx_unlock(¶ms->ioctl_mtx);
2001 ctl_ioctl_done(union ctl_io *io)
2003 struct ctl_fe_ioctl_params *params;
2005 params = (struct ctl_fe_ioctl_params *)
2006 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
2008 mtx_lock(¶ms->ioctl_mtx);
2009 params->state = CTL_IOCTL_DONE;
2010 cv_broadcast(¶ms->sem);
2011 mtx_unlock(¶ms->ioctl_mtx);
2015 ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask)
2017 struct ctl_fe_ioctl_startstop_info *sd_info;
2019 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg;
2021 sd_info->hs_info.status = metatask->status;
2022 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns;
2023 sd_info->hs_info.luns_complete =
2024 metatask->taskinfo.startstop.luns_complete;
2025 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed;
2027 cv_broadcast(&sd_info->sem);
2031 ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask)
2033 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info;
2035 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg;
2037 mtx_lock(fe_bbr_info->lock);
2038 fe_bbr_info->bbr_info->status = metatask->status;
2039 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status;
2040 fe_bbr_info->wakeup_done = 1;
2041 mtx_unlock(fe_bbr_info->lock);
2043 cv_broadcast(&fe_bbr_info->sem);
2047 * Returns 0 for success, errno for failure.
2050 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num,
2051 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries)
2058 mtx_lock(&lun->lun_lock);
2059 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL);
2060 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr,
2062 struct ctl_ooa_entry *entry;
2065 * If we've got more than we can fit, just count the
2066 * remaining entries.
2068 if (*cur_fill_num >= ooa_hdr->alloc_num)
2071 entry = &kern_entries[*cur_fill_num];
2073 entry->tag_num = io->scsiio.tag_num;
2074 entry->lun_num = lun->lun;
2076 entry->start_bt = io->io_hdr.start_bt;
2078 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len);
2079 entry->cdb_len = io->scsiio.cdb_len;
2080 if (io->io_hdr.flags & CTL_FLAG_BLOCKED)
2081 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED;
2083 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG)
2084 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA;
2086 if (io->io_hdr.flags & CTL_FLAG_ABORT)
2087 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT;
2089 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR)
2090 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR;
2092 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED)
2093 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED;
2095 mtx_unlock(&lun->lun_lock);
2101 ctl_copyin_alloc(void *user_addr, int len, char *error_str,
2102 size_t error_str_len)
2106 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO);
2108 if (copyin(user_addr, kptr, len) != 0) {
2109 snprintf(error_str, error_str_len, "Error copying %d bytes "
2110 "from user address %p to kernel address %p", len,
2120 ctl_free_args(int num_args, struct ctl_be_arg *args)
2127 for (i = 0; i < num_args; i++) {
2128 free(args[i].kname, M_CTL);
2129 free(args[i].kvalue, M_CTL);
2135 static struct ctl_be_arg *
2136 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs,
2137 char *error_str, size_t error_str_len)
2139 struct ctl_be_arg *args;
2142 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args),
2143 error_str, error_str_len);
2148 for (i = 0; i < num_args; i++) {
2149 args[i].kname = NULL;
2150 args[i].kvalue = NULL;
2153 for (i = 0; i < num_args; i++) {
2156 args[i].kname = ctl_copyin_alloc(args[i].name,
2157 args[i].namelen, error_str, error_str_len);
2158 if (args[i].kname == NULL)
2161 if (args[i].kname[args[i].namelen - 1] != '\0') {
2162 snprintf(error_str, error_str_len, "Argument %d "
2163 "name is not NUL-terminated", i);
2167 if (args[i].flags & CTL_BEARG_RD) {
2168 tmpptr = ctl_copyin_alloc(args[i].value,
2169 args[i].vallen, error_str, error_str_len);
2172 if ((args[i].flags & CTL_BEARG_ASCII)
2173 && (tmpptr[args[i].vallen - 1] != '\0')) {
2174 snprintf(error_str, error_str_len, "Argument "
2175 "%d value is not NUL-terminated", i);
2178 args[i].kvalue = tmpptr;
2180 args[i].kvalue = malloc(args[i].vallen,
2181 M_CTL, M_WAITOK | M_ZERO);
2188 ctl_free_args(num_args, args);
2194 ctl_copyout_args(int num_args, struct ctl_be_arg *args)
2198 for (i = 0; i < num_args; i++) {
2199 if (args[i].flags & CTL_BEARG_WR)
2200 copyout(args[i].kvalue, args[i].value, args[i].vallen);
2205 * Escape characters that are illegal or not recommended in XML.
2208 ctl_sbuf_printf_esc(struct sbuf *sb, char *str)
2214 for (; *str; str++) {
2217 retval = sbuf_printf(sb, "&");
2220 retval = sbuf_printf(sb, ">");
2223 retval = sbuf_printf(sb, "<");
2226 retval = sbuf_putc(sb, *str);
2239 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
2242 struct ctl_softc *softc;
2245 softc = control_softc;
2255 * If we haven't been "enabled", don't allow any SCSI I/O
2258 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) {
2263 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref);
2265 printf("ctl_ioctl: can't allocate ctl_io!\n");
2271 * Need to save the pool reference so it doesn't get
2272 * spammed by the user's ctl_io.
2274 pool_tmp = io->io_hdr.pool;
2276 memcpy(io, (void *)addr, sizeof(*io));
2278 io->io_hdr.pool = pool_tmp;
2280 * No status yet, so make sure the status is set properly.
2282 io->io_hdr.status = CTL_STATUS_NONE;
2285 * The user sets the initiator ID, target and LUN IDs.
2287 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port;
2288 io->io_hdr.flags |= CTL_FLAG_USER_REQ;
2289 if ((io->io_hdr.io_type == CTL_IO_SCSI)
2290 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED))
2291 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++;
2293 retval = ctl_ioctl_submit_wait(io);
2300 memcpy((void *)addr, io, sizeof(*io));
2302 /* return this to our pool */
2307 case CTL_ENABLE_PORT:
2308 case CTL_DISABLE_PORT:
2309 case CTL_SET_PORT_WWNS: {
2310 struct ctl_port *port;
2311 struct ctl_port_entry *entry;
2313 entry = (struct ctl_port_entry *)addr;
2315 mtx_lock(&softc->ctl_lock);
2316 STAILQ_FOREACH(port, &softc->port_list, links) {
2322 if ((entry->port_type == CTL_PORT_NONE)
2323 && (entry->targ_port == port->targ_port)) {
2325 * If the user only wants to enable or
2326 * disable or set WWNs on a specific port,
2327 * do the operation and we're done.
2331 } else if (entry->port_type & port->port_type) {
2333 * Compare the user's type mask with the
2334 * particular frontend type to see if we
2341 * Make sure the user isn't trying to set
2342 * WWNs on multiple ports at the same time.
2344 if (cmd == CTL_SET_PORT_WWNS) {
2345 printf("%s: Can't set WWNs on "
2346 "multiple ports\n", __func__);
2353 * XXX KDM we have to drop the lock here,
2354 * because the online/offline operations
2355 * can potentially block. We need to
2356 * reference count the frontends so they
2359 mtx_unlock(&softc->ctl_lock);
2361 if (cmd == CTL_ENABLE_PORT) {
2362 struct ctl_lun *lun;
2364 STAILQ_FOREACH(lun, &softc->lun_list,
2366 port->lun_enable(port->targ_lun_arg,
2371 ctl_port_online(port);
2372 } else if (cmd == CTL_DISABLE_PORT) {
2373 struct ctl_lun *lun;
2375 ctl_port_offline(port);
2377 STAILQ_FOREACH(lun, &softc->lun_list,
2386 mtx_lock(&softc->ctl_lock);
2388 if (cmd == CTL_SET_PORT_WWNS)
2389 ctl_port_set_wwns(port,
2390 (entry->flags & CTL_PORT_WWNN_VALID) ?
2392 (entry->flags & CTL_PORT_WWPN_VALID) ?
2393 1 : 0, entry->wwpn);
2398 mtx_unlock(&softc->ctl_lock);
2401 case CTL_GET_PORT_LIST: {
2402 struct ctl_port *port;
2403 struct ctl_port_list *list;
2406 list = (struct ctl_port_list *)addr;
2408 if (list->alloc_len != (list->alloc_num *
2409 sizeof(struct ctl_port_entry))) {
2410 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != "
2411 "alloc_num %u * sizeof(struct ctl_port_entry) "
2412 "%zu\n", __func__, list->alloc_len,
2413 list->alloc_num, sizeof(struct ctl_port_entry));
2419 list->dropped_num = 0;
2421 mtx_lock(&softc->ctl_lock);
2422 STAILQ_FOREACH(port, &softc->port_list, links) {
2423 struct ctl_port_entry entry, *list_entry;
2425 if (list->fill_num >= list->alloc_num) {
2426 list->dropped_num++;
2430 entry.port_type = port->port_type;
2431 strlcpy(entry.port_name, port->port_name,
2432 sizeof(entry.port_name));
2433 entry.targ_port = port->targ_port;
2434 entry.physical_port = port->physical_port;
2435 entry.virtual_port = port->virtual_port;
2436 entry.wwnn = port->wwnn;
2437 entry.wwpn = port->wwpn;
2438 if (port->status & CTL_PORT_STATUS_ONLINE)
2443 list_entry = &list->entries[i];
2445 retval = copyout(&entry, list_entry, sizeof(entry));
2447 printf("%s: CTL_GET_PORT_LIST: copyout "
2448 "returned %d\n", __func__, retval);
2453 list->fill_len += sizeof(entry);
2455 mtx_unlock(&softc->ctl_lock);
2458 * If this is non-zero, we had a copyout fault, so there's
2459 * probably no point in attempting to set the status inside
2465 if (list->dropped_num > 0)
2466 list->status = CTL_PORT_LIST_NEED_MORE_SPACE;
2468 list->status = CTL_PORT_LIST_OK;
2471 case CTL_DUMP_OOA: {
2472 struct ctl_lun *lun;
2477 mtx_lock(&softc->ctl_lock);
2478 printf("Dumping OOA queues:\n");
2479 STAILQ_FOREACH(lun, &softc->lun_list, links) {
2480 mtx_lock(&lun->lun_lock);
2481 for (io = (union ctl_io *)TAILQ_FIRST(
2482 &lun->ooa_queue); io != NULL;
2483 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr,
2485 sbuf_new(&sb, printbuf, sizeof(printbuf),
2487 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ",
2491 CTL_FLAG_BLOCKED) ? "" : " BLOCKED",
2493 CTL_FLAG_DMA_INPROG) ? " DMA" : "",
2495 CTL_FLAG_ABORT) ? " ABORT" : "",
2497 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : "");
2498 ctl_scsi_command_string(&io->scsiio, NULL, &sb);
2500 printf("%s\n", sbuf_data(&sb));
2502 mtx_unlock(&lun->lun_lock);
2504 printf("OOA queues dump done\n");
2505 mtx_unlock(&softc->ctl_lock);
2509 struct ctl_lun *lun;
2510 struct ctl_ooa *ooa_hdr;
2511 struct ctl_ooa_entry *entries;
2512 uint32_t cur_fill_num;
2514 ooa_hdr = (struct ctl_ooa *)addr;
2516 if ((ooa_hdr->alloc_len == 0)
2517 || (ooa_hdr->alloc_num == 0)) {
2518 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u "
2519 "must be non-zero\n", __func__,
2520 ooa_hdr->alloc_len, ooa_hdr->alloc_num);
2525 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num *
2526 sizeof(struct ctl_ooa_entry))) {
2527 printf("%s: CTL_GET_OOA: alloc len %u must be alloc "
2528 "num %d * sizeof(struct ctl_ooa_entry) %zd\n",
2529 __func__, ooa_hdr->alloc_len,
2530 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry));
2535 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO);
2536 if (entries == NULL) {
2537 printf("%s: could not allocate %d bytes for OOA "
2538 "dump\n", __func__, ooa_hdr->alloc_len);
2543 mtx_lock(&softc->ctl_lock);
2544 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0)
2545 && ((ooa_hdr->lun_num > CTL_MAX_LUNS)
2546 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) {
2547 mtx_unlock(&softc->ctl_lock);
2548 free(entries, M_CTL);
2549 printf("%s: CTL_GET_OOA: invalid LUN %ju\n",
2550 __func__, (uintmax_t)ooa_hdr->lun_num);
2557 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) {
2558 STAILQ_FOREACH(lun, &softc->lun_list, links) {
2559 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,
2565 mtx_unlock(&softc->ctl_lock);
2566 free(entries, M_CTL);
2570 lun = softc->ctl_luns[ooa_hdr->lun_num];
2572 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr,
2575 mtx_unlock(&softc->ctl_lock);
2577 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num);
2578 ooa_hdr->fill_len = ooa_hdr->fill_num *
2579 sizeof(struct ctl_ooa_entry);
2580 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len);
2582 printf("%s: error copying out %d bytes for OOA dump\n",
2583 __func__, ooa_hdr->fill_len);
2586 getbintime(&ooa_hdr->cur_bt);
2588 if (cur_fill_num > ooa_hdr->alloc_num) {
2589 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num;
2590 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE;
2592 ooa_hdr->dropped_num = 0;
2593 ooa_hdr->status = CTL_OOA_OK;
2596 free(entries, M_CTL);
2599 case CTL_CHECK_OOA: {
2601 struct ctl_lun *lun;
2602 struct ctl_ooa_info *ooa_info;
2605 ooa_info = (struct ctl_ooa_info *)addr;
2607 if (ooa_info->lun_id >= CTL_MAX_LUNS) {
2608 ooa_info->status = CTL_OOA_INVALID_LUN;
2611 mtx_lock(&softc->ctl_lock);
2612 lun = softc->ctl_luns[ooa_info->lun_id];
2614 mtx_unlock(&softc->ctl_lock);
2615 ooa_info->status = CTL_OOA_INVALID_LUN;
2618 mtx_lock(&lun->lun_lock);
2619 mtx_unlock(&softc->ctl_lock);
2620 ooa_info->num_entries = 0;
2621 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue);
2622 io != NULL; io = (union ctl_io *)TAILQ_NEXT(
2623 &io->io_hdr, ooa_links)) {
2624 ooa_info->num_entries++;
2626 mtx_unlock(&lun->lun_lock);
2628 ooa_info->status = CTL_OOA_SUCCESS;
2632 case CTL_HARD_START:
2633 case CTL_HARD_STOP: {
2634 struct ctl_fe_ioctl_startstop_info ss_info;
2635 struct cfi_metatask *metatask;
2638 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF);
2640 cv_init(&ss_info.sem, "hard start/stop cv" );
2642 metatask = cfi_alloc_metatask(/*can_wait*/ 1);
2643 if (metatask == NULL) {
2645 mtx_destroy(&hs_mtx);
2649 if (cmd == CTL_HARD_START)
2650 metatask->tasktype = CFI_TASK_STARTUP;
2652 metatask->tasktype = CFI_TASK_SHUTDOWN;
2654 metatask->callback = ctl_ioctl_hard_startstop_callback;
2655 metatask->callback_arg = &ss_info;
2657 cfi_action(metatask);
2659 /* Wait for the callback */
2661 cv_wait_sig(&ss_info.sem, &hs_mtx);
2662 mtx_unlock(&hs_mtx);
2665 * All information has been copied from the metatask by the
2666 * time cv_broadcast() is called, so we free the metatask here.
2668 cfi_free_metatask(metatask);
2670 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info));
2672 mtx_destroy(&hs_mtx);
2676 struct ctl_bbrread_info *bbr_info;
2677 struct ctl_fe_ioctl_bbrread_info fe_bbr_info;
2679 struct cfi_metatask *metatask;
2681 bbr_info = (struct ctl_bbrread_info *)addr;
2683 bzero(&fe_bbr_info, sizeof(fe_bbr_info));
2685 bzero(&bbr_mtx, sizeof(bbr_mtx));
2686 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF);
2688 fe_bbr_info.bbr_info = bbr_info;
2689 fe_bbr_info.lock = &bbr_mtx;
2691 cv_init(&fe_bbr_info.sem, "BBR read cv");
2692 metatask = cfi_alloc_metatask(/*can_wait*/ 1);
2694 if (metatask == NULL) {
2695 mtx_destroy(&bbr_mtx);
2696 cv_destroy(&fe_bbr_info.sem);
2700 metatask->tasktype = CFI_TASK_BBRREAD;
2701 metatask->callback = ctl_ioctl_bbrread_callback;
2702 metatask->callback_arg = &fe_bbr_info;
2703 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num;
2704 metatask->taskinfo.bbrread.lba = bbr_info->lba;
2705 metatask->taskinfo.bbrread.len = bbr_info->len;
2707 cfi_action(metatask);
2710 while (fe_bbr_info.wakeup_done == 0)
2711 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx);
2712 mtx_unlock(&bbr_mtx);
2714 bbr_info->status = metatask->status;
2715 bbr_info->bbr_status = metatask->taskinfo.bbrread.status;
2716 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status;
2717 memcpy(&bbr_info->sense_data,
2718 &metatask->taskinfo.bbrread.sense_data,
2719 ctl_min(sizeof(bbr_info->sense_data),
2720 sizeof(metatask->taskinfo.bbrread.sense_data)));
2722 cfi_free_metatask(metatask);
2724 mtx_destroy(&bbr_mtx);
2725 cv_destroy(&fe_bbr_info.sem);
2729 case CTL_DELAY_IO: {
2730 struct ctl_io_delay_info *delay_info;
2732 struct ctl_lun *lun;
2733 #endif /* CTL_IO_DELAY */
2735 delay_info = (struct ctl_io_delay_info *)addr;
2738 mtx_lock(&softc->ctl_lock);
2740 if ((delay_info->lun_id > CTL_MAX_LUNS)
2741 || (softc->ctl_luns[delay_info->lun_id] == NULL)) {
2742 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN;
2744 lun = softc->ctl_luns[delay_info->lun_id];
2745 mtx_lock(&lun->lun_lock);
2747 delay_info->status = CTL_DELAY_STATUS_OK;
2749 switch (delay_info->delay_type) {
2750 case CTL_DELAY_TYPE_CONT:
2752 case CTL_DELAY_TYPE_ONESHOT:
2755 delay_info->status =
2756 CTL_DELAY_STATUS_INVALID_TYPE;
2760 switch (delay_info->delay_loc) {
2761 case CTL_DELAY_LOC_DATAMOVE:
2762 lun->delay_info.datamove_type =
2763 delay_info->delay_type;
2764 lun->delay_info.datamove_delay =
2765 delay_info->delay_secs;
2767 case CTL_DELAY_LOC_DONE:
2768 lun->delay_info.done_type =
2769 delay_info->delay_type;
2770 lun->delay_info.done_delay =
2771 delay_info->delay_secs;
2774 delay_info->status =
2775 CTL_DELAY_STATUS_INVALID_LOC;
2778 mtx_unlock(&lun->lun_lock);
2781 mtx_unlock(&softc->ctl_lock);
2783 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED;
2784 #endif /* CTL_IO_DELAY */
2787 case CTL_REALSYNC_SET: {
2790 syncstate = (int *)addr;
2792 mtx_lock(&softc->ctl_lock);
2793 switch (*syncstate) {
2795 softc->flags &= ~CTL_FLAG_REAL_SYNC;
2798 softc->flags |= CTL_FLAG_REAL_SYNC;
2804 mtx_unlock(&softc->ctl_lock);
2807 case CTL_REALSYNC_GET: {
2810 syncstate = (int*)addr;
2812 mtx_lock(&softc->ctl_lock);
2813 if (softc->flags & CTL_FLAG_REAL_SYNC)
2817 mtx_unlock(&softc->ctl_lock);
2823 struct ctl_sync_info *sync_info;
2824 struct ctl_lun *lun;
2826 sync_info = (struct ctl_sync_info *)addr;
2828 mtx_lock(&softc->ctl_lock);
2829 lun = softc->ctl_luns[sync_info->lun_id];
2831 mtx_unlock(&softc->ctl_lock);
2832 sync_info->status = CTL_GS_SYNC_NO_LUN;
2835 * Get or set the sync interval. We're not bounds checking
2836 * in the set case, hopefully the user won't do something
2839 mtx_lock(&lun->lun_lock);
2840 mtx_unlock(&softc->ctl_lock);
2841 if (cmd == CTL_GETSYNC)
2842 sync_info->sync_interval = lun->sync_interval;
2844 lun->sync_interval = sync_info->sync_interval;
2845 mtx_unlock(&lun->lun_lock);
2847 sync_info->status = CTL_GS_SYNC_OK;
2851 case CTL_GETSTATS: {
2852 struct ctl_stats *stats;
2853 struct ctl_lun *lun;
2856 stats = (struct ctl_stats *)addr;
2858 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) >
2860 stats->status = CTL_SS_NEED_MORE_SPACE;
2861 stats->num_luns = softc->num_luns;
2865 * XXX KDM no locking here. If the LUN list changes,
2866 * things can blow up.
2868 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL;
2869 i++, lun = STAILQ_NEXT(lun, links)) {
2870 retval = copyout(&lun->stats, &stats->lun_stats[i],
2871 sizeof(lun->stats));
2875 stats->num_luns = softc->num_luns;
2876 stats->fill_len = sizeof(struct ctl_lun_io_stats) *
2878 stats->status = CTL_SS_OK;
2880 stats->flags = CTL_STATS_FLAG_TIME_VALID;
2882 stats->flags = CTL_STATS_FLAG_NONE;
2884 getnanouptime(&stats->timestamp);
2887 case CTL_ERROR_INJECT: {
2888 struct ctl_error_desc *err_desc, *new_err_desc;
2889 struct ctl_lun *lun;
2891 err_desc = (struct ctl_error_desc *)addr;
2893 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL,
2895 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc));
2897 mtx_lock(&softc->ctl_lock);
2898 lun = softc->ctl_luns[err_desc->lun_id];
2900 mtx_unlock(&softc->ctl_lock);
2901 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n",
2902 __func__, (uintmax_t)err_desc->lun_id);
2906 mtx_lock(&lun->lun_lock);
2907 mtx_unlock(&softc->ctl_lock);
2910 * We could do some checking here to verify the validity
2911 * of the request, but given the complexity of error
2912 * injection requests, the checking logic would be fairly
2915 * For now, if the request is invalid, it just won't get
2916 * executed and might get deleted.
2918 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links);
2921 * XXX KDM check to make sure the serial number is unique,
2922 * in case we somehow manage to wrap. That shouldn't
2923 * happen for a very long time, but it's the right thing to
2926 new_err_desc->serial = lun->error_serial;
2927 err_desc->serial = lun->error_serial;
2928 lun->error_serial++;
2930 mtx_unlock(&lun->lun_lock);
2933 case CTL_ERROR_INJECT_DELETE: {
2934 struct ctl_error_desc *delete_desc, *desc, *desc2;
2935 struct ctl_lun *lun;
2938 delete_desc = (struct ctl_error_desc *)addr;
2941 mtx_lock(&softc->ctl_lock);
2942 lun = softc->ctl_luns[delete_desc->lun_id];
2944 mtx_unlock(&softc->ctl_lock);
2945 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n",
2946 __func__, (uintmax_t)delete_desc->lun_id);
2950 mtx_lock(&lun->lun_lock);
2951 mtx_unlock(&softc->ctl_lock);
2952 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) {
2953 if (desc->serial != delete_desc->serial)
2956 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc,
2961 mtx_unlock(&lun->lun_lock);
2962 if (delete_done == 0) {
2963 printf("%s: CTL_ERROR_INJECT_DELETE: can't find "
2964 "error serial %ju on LUN %u\n", __func__,
2965 delete_desc->serial, delete_desc->lun_id);
2971 case CTL_DUMP_STRUCTS: {
2973 struct ctl_port *port;
2974 struct ctl_frontend *fe;
2976 mtx_lock(&softc->ctl_lock);
2977 printf("CTL Persistent Reservation information start:\n");
2978 for (i = 0; i < CTL_MAX_LUNS; i++) {
2979 struct ctl_lun *lun;
2981 lun = softc->ctl_luns[i];
2984 || ((lun->flags & CTL_LUN_DISABLED) != 0))
2987 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) {
2988 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){
2989 idx = j * CTL_MAX_INIT_PER_PORT + k;
2990 if (lun->per_res[idx].registered == 0)
2992 printf(" LUN %d port %d iid %d key "
2994 (uintmax_t)scsi_8btou64(
2995 lun->per_res[idx].res_key.key));
2999 printf("CTL Persistent Reservation information end\n");
3000 printf("CTL Ports:\n");
3001 STAILQ_FOREACH(port, &softc->port_list, links) {
3002 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN "
3003 "%#jx WWPN %#jx\n", port->targ_port, port->port_name,
3004 port->frontend->name, port->port_type,
3005 port->physical_port, port->virtual_port,
3006 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn);
3007 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) {
3008 if (port->wwpn_iid[j].in_use == 0 &&
3009 port->wwpn_iid[j].wwpn == 0 &&
3010 port->wwpn_iid[j].name == NULL)
3013 printf(" iid %u use %d WWPN %#jx '%s'\n",
3014 j, port->wwpn_iid[j].in_use,
3015 (uintmax_t)port->wwpn_iid[j].wwpn,
3016 port->wwpn_iid[j].name);
3019 printf("CTL Port information end\n");
3020 mtx_unlock(&softc->ctl_lock);
3022 * XXX KDM calling this without a lock. We'd likely want
3023 * to drop the lock before calling the frontend's dump
3026 printf("CTL Frontends:\n");
3027 STAILQ_FOREACH(fe, &softc->fe_list, links) {
3028 printf(" Frontend '%s'\n", fe->name);
3029 if (fe->fe_dump != NULL)
3032 printf("CTL Frontend information end\n");
3036 struct ctl_lun_req *lun_req;
3037 struct ctl_backend_driver *backend;
3039 lun_req = (struct ctl_lun_req *)addr;
3041 backend = ctl_backend_find(lun_req->backend);
3042 if (backend == NULL) {
3043 lun_req->status = CTL_LUN_ERROR;
3044 snprintf(lun_req->error_str,
3045 sizeof(lun_req->error_str),
3046 "Backend \"%s\" not found.",
3050 if (lun_req->num_be_args > 0) {
3051 lun_req->kern_be_args = ctl_copyin_args(
3052 lun_req->num_be_args,
3055 sizeof(lun_req->error_str));
3056 if (lun_req->kern_be_args == NULL) {
3057 lun_req->status = CTL_LUN_ERROR;
3062 retval = backend->ioctl(dev, cmd, addr, flag, td);
3064 if (lun_req->num_be_args > 0) {
3065 ctl_copyout_args(lun_req->num_be_args,
3066 lun_req->kern_be_args);
3067 ctl_free_args(lun_req->num_be_args,
3068 lun_req->kern_be_args);
3072 case CTL_LUN_LIST: {
3074 struct ctl_lun *lun;
3075 struct ctl_lun_list *list;
3076 struct ctl_option *opt;
3078 list = (struct ctl_lun_list *)addr;
3081 * Allocate a fixed length sbuf here, based on the length
3082 * of the user's buffer. We could allocate an auto-extending
3083 * buffer, and then tell the user how much larger our
3084 * amount of data is than his buffer, but that presents
3087 * 1. The sbuf(9) routines use a blocking malloc, and so
3088 * we can't hold a lock while calling them with an
3089 * auto-extending buffer.
3091 * 2. There is not currently a LUN reference counting
3092 * mechanism, outside of outstanding transactions on
3093 * the LUN's OOA queue. So a LUN could go away on us
3094 * while we're getting the LUN number, backend-specific
3095 * information, etc. Thus, given the way things
3096 * currently work, we need to hold the CTL lock while
3097 * grabbing LUN information.
3099 * So, from the user's standpoint, the best thing to do is
3100 * allocate what he thinks is a reasonable buffer length,
3101 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error,
3102 * double the buffer length and try again. (And repeat
3103 * that until he succeeds.)
3105 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN);
3107 list->status = CTL_LUN_LIST_ERROR;
3108 snprintf(list->error_str, sizeof(list->error_str),
3109 "Unable to allocate %d bytes for LUN list",
3114 sbuf_printf(sb, "<ctllunlist>\n");
3116 mtx_lock(&softc->ctl_lock);
3117 STAILQ_FOREACH(lun, &softc->lun_list, links) {
3118 mtx_lock(&lun->lun_lock);
3119 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n",
3120 (uintmax_t)lun->lun);
3123 * Bail out as soon as we see that we've overfilled
3129 retval = sbuf_printf(sb, "\t<backend_type>%s"
3130 "</backend_type>\n",
3131 (lun->backend == NULL) ? "none" :
3132 lun->backend->name);
3137 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n",
3138 lun->be_lun->lun_type);
3143 if (lun->backend == NULL) {
3144 retval = sbuf_printf(sb, "</lun>\n");
3150 retval = sbuf_printf(sb, "\t<size>%ju</size>\n",
3151 (lun->be_lun->maxlba > 0) ?
3152 lun->be_lun->maxlba + 1 : 0);
3157 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n",
3158 lun->be_lun->blocksize);
3163 retval = sbuf_printf(sb, "\t<serial_number>");
3168 retval = ctl_sbuf_printf_esc(sb,
3169 lun->be_lun->serial_num);
3174 retval = sbuf_printf(sb, "</serial_number>\n");
3179 retval = sbuf_printf(sb, "\t<device_id>");
3184 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id);
3189 retval = sbuf_printf(sb, "</device_id>\n");
3194 if (lun->backend->lun_info != NULL) {
3195 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb);
3199 STAILQ_FOREACH(opt, &lun->be_lun->options, links) {
3200 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n",
3201 opt->name, opt->value, opt->name);
3206 retval = sbuf_printf(sb, "</lun>\n");
3210 mtx_unlock(&lun->lun_lock);
3213 mtx_unlock(&lun->lun_lock);
3214 mtx_unlock(&softc->ctl_lock);
3217 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) {
3220 list->status = CTL_LUN_LIST_NEED_MORE_SPACE;
3221 snprintf(list->error_str, sizeof(list->error_str),
3222 "Out of space, %d bytes is too small",
3229 retval = copyout(sbuf_data(sb), list->lun_xml,
3232 list->fill_len = sbuf_len(sb) + 1;
3233 list->status = CTL_LUN_LIST_OK;
3238 struct ctl_iscsi *ci;
3239 struct ctl_frontend *fe;
3241 ci = (struct ctl_iscsi *)addr;
3243 fe = ctl_frontend_find("iscsi");
3245 ci->status = CTL_ISCSI_ERROR;
3246 snprintf(ci->error_str, sizeof(ci->error_str),
3247 "Frontend \"iscsi\" not found.");
3251 retval = fe->ioctl(dev, cmd, addr, flag, td);
3254 case CTL_PORT_REQ: {
3255 struct ctl_req *req;
3256 struct ctl_frontend *fe;
3258 req = (struct ctl_req *)addr;
3260 fe = ctl_frontend_find(req->driver);
3262 req->status = CTL_LUN_ERROR;
3263 snprintf(req->error_str, sizeof(req->error_str),
3264 "Frontend \"%s\" not found.", req->driver);
3267 if (req->num_args > 0) {
3268 req->kern_args = ctl_copyin_args(req->num_args,
3269 req->args, req->error_str, sizeof(req->error_str));
3270 if (req->kern_args == NULL) {
3271 req->status = CTL_LUN_ERROR;
3276 retval = fe->ioctl(dev, cmd, addr, flag, td);
3278 if (req->num_args > 0) {
3279 ctl_copyout_args(req->num_args, req->kern_args);
3280 ctl_free_args(req->num_args, req->kern_args);
3284 case CTL_PORT_LIST: {
3286 struct ctl_port *port;
3287 struct ctl_lun_list *list;
3288 struct ctl_option *opt;
3290 list = (struct ctl_lun_list *)addr;
3292 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN);
3294 list->status = CTL_LUN_LIST_ERROR;
3295 snprintf(list->error_str, sizeof(list->error_str),
3296 "Unable to allocate %d bytes for LUN list",
3301 sbuf_printf(sb, "<ctlportlist>\n");
3303 mtx_lock(&softc->ctl_lock);
3304 STAILQ_FOREACH(port, &softc->port_list, links) {
3305 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n",
3306 (uintmax_t)port->targ_port);
3309 * Bail out as soon as we see that we've overfilled
3315 retval = sbuf_printf(sb, "\t<frontend_type>%s"
3316 "</frontend_type>\n", port->frontend->name);
3320 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n",
3325 retval = sbuf_printf(sb, "\t<online>%s</online>\n",
3326 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO");
3330 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n",
3335 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n",
3336 port->physical_port);
3340 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n",
3341 port->virtual_port);
3345 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n",
3346 (uintmax_t)port->wwnn);
3350 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n",
3351 (uintmax_t)port->wwpn);
3355 if (port->port_info != NULL) {
3356 retval = port->port_info(port->onoff_arg, sb);
3360 STAILQ_FOREACH(opt, &port->options, links) {
3361 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n",
3362 opt->name, opt->value, opt->name);
3367 retval = sbuf_printf(sb, "</targ_port>\n");
3371 mtx_unlock(&softc->ctl_lock);
3374 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) {
3377 list->status = CTL_LUN_LIST_NEED_MORE_SPACE;
3378 snprintf(list->error_str, sizeof(list->error_str),
3379 "Out of space, %d bytes is too small",
3386 retval = copyout(sbuf_data(sb), list->lun_xml,
3389 list->fill_len = sbuf_len(sb) + 1;
3390 list->status = CTL_LUN_LIST_OK;
3395 /* XXX KDM should we fix this? */
3397 struct ctl_backend_driver *backend;
3404 * We encode the backend type as the ioctl type for backend
3405 * ioctls. So parse it out here, and then search for a
3406 * backend of this type.
3408 type = _IOC_TYPE(cmd);
3410 STAILQ_FOREACH(backend, &softc->be_list, links) {
3411 if (backend->type == type) {
3417 printf("ctl: unknown ioctl command %#lx or backend "
3422 retval = backend->ioctl(dev, cmd, addr, flag, td);
3432 ctl_get_initindex(struct ctl_nexus *nexus)
3434 if (nexus->targ_port < CTL_MAX_PORTS)
3435 return (nexus->initid.id +
3436 (nexus->targ_port * CTL_MAX_INIT_PER_PORT));
3438 return (nexus->initid.id +
3439 ((nexus->targ_port - CTL_MAX_PORTS) *
3440 CTL_MAX_INIT_PER_PORT));
3444 ctl_get_resindex(struct ctl_nexus *nexus)
3446 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT));
3450 ctl_port_idx(int port_num)
3452 if (port_num < CTL_MAX_PORTS)
3455 return(port_num - CTL_MAX_PORTS);
3459 ctl_map_lun(int port_num, uint32_t lun_id)
3461 struct ctl_port *port;
3463 port = control_softc->ctl_ports[ctl_port_idx(port_num)];
3465 return (UINT32_MAX);
3466 if (port->lun_map == NULL)
3468 return (port->lun_map(port->targ_lun_arg, lun_id));
3472 ctl_map_lun_back(int port_num, uint32_t lun_id)
3474 struct ctl_port *port;
3477 port = control_softc->ctl_ports[ctl_port_idx(port_num)];
3478 if (port->lun_map == NULL)
3480 for (i = 0; i < CTL_MAX_LUNS; i++) {
3481 if (port->lun_map(port->targ_lun_arg, i) == lun_id)
3484 return (UINT32_MAX);
3488 * Note: This only works for bitmask sizes that are at least 32 bits, and
3489 * that are a power of 2.
3492 ctl_ffz(uint32_t *mask, uint32_t size)
3494 uint32_t num_chunks, num_pieces;
3497 num_chunks = (size >> 5);
3498 if (num_chunks == 0)
3500 num_pieces = ctl_min((sizeof(uint32_t) * 8), size);
3502 for (i = 0; i < num_chunks; i++) {
3503 for (j = 0; j < num_pieces; j++) {
3504 if ((mask[i] & (1 << j)) == 0)
3505 return ((i << 5) + j);
3513 ctl_set_mask(uint32_t *mask, uint32_t bit)
3515 uint32_t chunk, piece;
3518 piece = bit % (sizeof(uint32_t) * 8);
3520 if ((mask[chunk] & (1 << piece)) != 0)
3523 mask[chunk] |= (1 << piece);
3529 ctl_clear_mask(uint32_t *mask, uint32_t bit)
3531 uint32_t chunk, piece;
3534 piece = bit % (sizeof(uint32_t) * 8);
3536 if ((mask[chunk] & (1 << piece)) == 0)
3539 mask[chunk] &= ~(1 << piece);
3545 ctl_is_set(uint32_t *mask, uint32_t bit)
3547 uint32_t chunk, piece;
3550 piece = bit % (sizeof(uint32_t) * 8);
3552 if ((mask[chunk] & (1 << piece)) == 0)
3560 * The bus, target and lun are optional, they can be filled in later.
3561 * can_wait is used to determine whether we can wait on the malloc or not.
3564 ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target,
3565 uint32_t targ_lun, int can_wait)
3570 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK);
3572 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT);
3575 io->io_hdr.io_type = io_type;
3576 io->io_hdr.targ_port = targ_port;
3578 * XXX KDM this needs to change/go away. We need to move
3579 * to a preallocated pool of ctl_scsiio structures.
3581 io->io_hdr.nexus.targ_target.id = targ_target;
3582 io->io_hdr.nexus.targ_lun = targ_lun;
3589 ctl_kfree_io(union ctl_io *io)
3596 * ctl_softc, pool_type, total_ctl_io are passed in.
3597 * npool is passed out.
3600 ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type,
3601 uint32_t total_ctl_io, struct ctl_io_pool **npool)
3604 union ctl_io *cur_io, *next_io;
3605 struct ctl_io_pool *pool;
3610 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL,
3617 pool->type = pool_type;
3618 pool->ctl_softc = ctl_softc;
3620 mtx_lock(&ctl_softc->pool_lock);
3621 pool->id = ctl_softc->cur_pool_id++;
3622 mtx_unlock(&ctl_softc->pool_lock);
3624 pool->flags = CTL_POOL_FLAG_NONE;
3625 pool->refcount = 1; /* Reference for validity. */
3626 STAILQ_INIT(&pool->free_queue);
3629 * XXX KDM other options here:
3630 * - allocate a page at a time
3631 * - allocate one big chunk of memory.
3632 * Page allocation might work well, but would take a little more
3635 for (i = 0; i < total_ctl_io; i++) {
3636 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO,
3638 if (cur_io == NULL) {
3642 cur_io->io_hdr.pool = pool;
3643 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links);
3644 pool->total_ctl_io++;
3645 pool->free_ctl_io++;
3649 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue);
3650 cur_io != NULL; cur_io = next_io) {
3651 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr,
3653 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr,
3655 free(cur_io, M_CTLIO);
3661 mtx_lock(&ctl_softc->pool_lock);
3662 ctl_softc->num_pools++;
3663 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links);
3665 * Increment our usage count if this is an external consumer, so we
3666 * can't get unloaded until the external consumer (most likely a
3667 * FETD) unloads and frees his pool.
3669 * XXX KDM will this increment the caller's module use count, or
3673 if ((pool_type != CTL_POOL_EMERGENCY)
3674 && (pool_type != CTL_POOL_INTERNAL)
3675 && (pool_type != CTL_POOL_4OTHERSC))
3679 mtx_unlock(&ctl_softc->pool_lock);
3689 ctl_pool_acquire(struct ctl_io_pool *pool)
3692 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED);
3694 if (pool->flags & CTL_POOL_FLAG_INVALID)
3703 ctl_pool_release(struct ctl_io_pool *pool)
3705 struct ctl_softc *ctl_softc = pool->ctl_softc;
3708 mtx_assert(&ctl_softc->pool_lock, MA_OWNED);
3710 if (--pool->refcount != 0)
3713 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) {
3714 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr,
3719 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links);
3720 ctl_softc->num_pools--;
3723 * XXX KDM will this decrement the caller's usage count or mine?
3726 if ((pool->type != CTL_POOL_EMERGENCY)
3727 && (pool->type != CTL_POOL_INTERNAL)
3728 && (pool->type != CTL_POOL_4OTHERSC))
3736 ctl_pool_free(struct ctl_io_pool *pool)
3738 struct ctl_softc *ctl_softc;
3743 ctl_softc = pool->ctl_softc;
3744 mtx_lock(&ctl_softc->pool_lock);
3745 pool->flags |= CTL_POOL_FLAG_INVALID;
3746 ctl_pool_release(pool);
3747 mtx_unlock(&ctl_softc->pool_lock);
3751 * This routine does not block (except for spinlocks of course).
3752 * It tries to allocate a ctl_io union from the caller's pool as quickly as
3756 ctl_alloc_io(void *pool_ref)
3759 struct ctl_softc *ctl_softc;
3760 struct ctl_io_pool *pool, *npool;
3761 struct ctl_io_pool *emergency_pool;
3763 pool = (struct ctl_io_pool *)pool_ref;
3766 printf("%s: pool is NULL\n", __func__);
3770 emergency_pool = NULL;
3772 ctl_softc = pool->ctl_softc;
3774 mtx_lock(&ctl_softc->pool_lock);
3776 * First, try to get the io structure from the user's pool.
3778 if (ctl_pool_acquire(pool) == 0) {
3779 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue);
3781 STAILQ_REMOVE_HEAD(&pool->free_queue, links);
3782 pool->total_allocated++;
3783 pool->free_ctl_io--;
3784 mtx_unlock(&ctl_softc->pool_lock);
3787 ctl_pool_release(pool);
3790 * If he doesn't have any io structures left, search for an
3791 * emergency pool and grab one from there.
3793 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) {
3794 if (npool->type != CTL_POOL_EMERGENCY)
3797 if (ctl_pool_acquire(npool) != 0)
3800 emergency_pool = npool;
3802 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue);
3804 STAILQ_REMOVE_HEAD(&npool->free_queue, links);
3805 npool->total_allocated++;
3806 npool->free_ctl_io--;
3807 mtx_unlock(&ctl_softc->pool_lock);
3810 ctl_pool_release(npool);
3813 /* Drop the spinlock before we malloc */
3814 mtx_unlock(&ctl_softc->pool_lock);
3817 * The emergency pool (if it exists) didn't have one, so try an
3818 * atomic (i.e. nonblocking) malloc and see if we get lucky.
3820 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT);
3823 * If the emergency pool exists but is empty, add this
3824 * ctl_io to its list when it gets freed.
3826 if (emergency_pool != NULL) {
3827 mtx_lock(&ctl_softc->pool_lock);
3828 if (ctl_pool_acquire(emergency_pool) == 0) {
3829 io->io_hdr.pool = emergency_pool;
3830 emergency_pool->total_ctl_io++;
3832 * Need to bump this, otherwise
3833 * total_allocated and total_freed won't
3834 * match when we no longer have anything
3837 emergency_pool->total_allocated++;
3839 mtx_unlock(&ctl_softc->pool_lock);
3841 io->io_hdr.pool = NULL;
3848 ctl_free_io(union ctl_io *io)
3854 * If this ctl_io has a pool, return it to that pool.
3856 if (io->io_hdr.pool != NULL) {
3857 struct ctl_io_pool *pool;
3859 pool = (struct ctl_io_pool *)io->io_hdr.pool;
3860 mtx_lock(&pool->ctl_softc->pool_lock);
3861 io->io_hdr.io_type = 0xff;
3862 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links);
3863 pool->total_freed++;
3864 pool->free_ctl_io++;
3865 ctl_pool_release(pool);
3866 mtx_unlock(&pool->ctl_softc->pool_lock);
3869 * Otherwise, just free it. We probably malloced it and
3870 * the emergency pool wasn't available.
3878 ctl_zero_io(union ctl_io *io)
3886 * May need to preserve linked list pointers at some point too.
3888 pool_ref = io->io_hdr.pool;
3890 memset(io, 0, sizeof(*io));
3892 io->io_hdr.pool = pool_ref;
3896 * This routine is currently used for internal copies of ctl_ios that need
3897 * to persist for some reason after we've already returned status to the
3898 * FETD. (Thus the flag set.)
3901 * Note that this makes a blind copy of all fields in the ctl_io, except
3902 * for the pool reference. This includes any memory that has been
3903 * allocated! That memory will no longer be valid after done has been
3904 * called, so this would be VERY DANGEROUS for command that actually does
3905 * any reads or writes. Right now (11/7/2005), this is only used for immediate
3906 * start and stop commands, which don't transfer any data, so this is not a
3907 * problem. If it is used for anything else, the caller would also need to
3908 * allocate data buffer space and this routine would need to be modified to
3909 * copy the data buffer(s) as well.
3912 ctl_copy_io(union ctl_io *src, union ctl_io *dest)
3921 * May need to preserve linked list pointers at some point too.
3923 pool_ref = dest->io_hdr.pool;
3925 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest)));
3927 dest->io_hdr.pool = pool_ref;
3929 * We need to know that this is an internal copy, and doesn't need
3930 * to get passed back to the FETD that allocated it.
3932 dest->io_hdr.flags |= CTL_FLAG_INT_COPY;
3937 ctl_update_power_subpage(struct copan_power_subpage *page)
3939 int num_luns, num_partitions, config_type;
3940 struct ctl_softc *softc;
3941 cs_BOOL_t aor_present, shelf_50pct_power;
3942 cs_raidset_personality_t rs_type;
3943 int max_active_luns;
3945 softc = control_softc;
3947 /* subtract out the processor LUN */
3948 num_luns = softc->num_luns - 1;
3950 * Default to 7 LUNs active, which was the only number we allowed
3953 max_active_luns = 7;
3955 num_partitions = config_GetRsPartitionInfo();
3956 config_type = config_GetConfigType();
3957 shelf_50pct_power = config_GetShelfPowerMode();
3958 aor_present = config_IsAorRsPresent();
3960 rs_type = ddb_GetRsRaidType(1);
3961 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5)
3962 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) {
3963 EPRINT(0, "Unsupported RS type %d!", rs_type);
3967 page->total_luns = num_luns;
3969 switch (config_type) {
3972 * In a 40 drive configuration, it doesn't matter what DC
3973 * cards we have, whether we have AOR enabled or not,
3974 * partitioning or not, or what type of RAIDset we have.
3975 * In that scenario, we can power up every LUN we present
3978 max_active_luns = num_luns;
3982 if (shelf_50pct_power == CS_FALSE) {
3984 if (aor_present == CS_TRUE) {
3986 CS_RAIDSET_PERSONALITY_RAID5) {
3987 max_active_luns = 7;
3988 } else if (rs_type ==
3989 CS_RAIDSET_PERSONALITY_RAID1){
3990 max_active_luns = 14;
3992 /* XXX KDM now what?? */
3996 CS_RAIDSET_PERSONALITY_RAID5) {
3997 max_active_luns = 8;
3998 } else if (rs_type ==
3999 CS_RAIDSET_PERSONALITY_RAID1){
4000 max_active_luns = 16;
4002 /* XXX KDM now what?? */
4008 * With 50% power in a 64 drive configuration, we
4009 * can power all LUNs we present.
4011 max_active_luns = num_luns;
4015 if (shelf_50pct_power == CS_FALSE) {
4017 if (aor_present == CS_TRUE) {
4019 CS_RAIDSET_PERSONALITY_RAID5) {
4020 max_active_luns = 7;
4021 } else if (rs_type ==
4022 CS_RAIDSET_PERSONALITY_RAID1){
4023 max_active_luns = 14;
4025 /* XXX KDM now what?? */
4029 CS_RAIDSET_PERSONALITY_RAID5) {
4030 max_active_luns = 8;
4031 } else if (rs_type ==
4032 CS_RAIDSET_PERSONALITY_RAID1){
4033 max_active_luns = 16;
4035 /* XXX KDM now what?? */
4040 if (aor_present == CS_TRUE) {
4042 CS_RAIDSET_PERSONALITY_RAID5) {
4043 max_active_luns = 14;
4044 } else if (rs_type ==
4045 CS_RAIDSET_PERSONALITY_RAID1){
4047 * We're assuming here that disk
4048 * caching is enabled, and so we're
4049 * able to power up half of each
4050 * LUN, and cache all writes.
4052 max_active_luns = num_luns;
4054 /* XXX KDM now what?? */
4058 CS_RAIDSET_PERSONALITY_RAID5) {
4059 max_active_luns = 15;
4060 } else if (rs_type ==
4061 CS_RAIDSET_PERSONALITY_RAID1){
4062 max_active_luns = 30;
4064 /* XXX KDM now what?? */
4071 * In this case, we have an unknown configuration, so we
4072 * just use the default from above.
4077 page->max_active_luns = max_active_luns;
4079 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__,
4080 page->total_luns, page->max_active_luns);
4083 #endif /* NEEDTOPORT */
4086 * This routine could be used in the future to load default and/or saved
4087 * mode page parameters for a particuar lun.
4090 ctl_init_page_index(struct ctl_lun *lun)
4093 struct ctl_page_index *page_index;
4094 struct ctl_softc *softc;
4096 memcpy(&lun->mode_pages.index, page_index_template,
4097 sizeof(page_index_template));
4099 softc = lun->ctl_softc;
4101 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
4103 page_index = &lun->mode_pages.index[i];
4105 * If this is a disk-only mode page, there's no point in
4106 * setting it up. For some pages, we have to have some
4107 * basic information about the disk in order to calculate the
4110 if ((lun->be_lun->lun_type != T_DIRECT)
4111 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY))
4114 switch (page_index->page_code & SMPH_PC_MASK) {
4115 case SMS_FORMAT_DEVICE_PAGE: {
4116 struct scsi_format_page *format_page;
4118 if (page_index->subpage != SMS_SUBPAGE_PAGE_0)
4119 panic("subpage is incorrect!");
4122 * Sectors per track are set above. Bytes per
4123 * sector need to be set here on a per-LUN basis.
4125 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT],
4126 &format_page_default,
4127 sizeof(format_page_default));
4128 memcpy(&lun->mode_pages.format_page[
4129 CTL_PAGE_CHANGEABLE], &format_page_changeable,
4130 sizeof(format_page_changeable));
4131 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT],
4132 &format_page_default,
4133 sizeof(format_page_default));
4134 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED],
4135 &format_page_default,
4136 sizeof(format_page_default));
4138 format_page = &lun->mode_pages.format_page[
4140 scsi_ulto2b(lun->be_lun->blocksize,
4141 format_page->bytes_per_sector);
4143 format_page = &lun->mode_pages.format_page[
4145 scsi_ulto2b(lun->be_lun->blocksize,
4146 format_page->bytes_per_sector);
4148 format_page = &lun->mode_pages.format_page[
4150 scsi_ulto2b(lun->be_lun->blocksize,
4151 format_page->bytes_per_sector);
4153 page_index->page_data =
4154 (uint8_t *)lun->mode_pages.format_page;
4157 case SMS_RIGID_DISK_PAGE: {
4158 struct scsi_rigid_disk_page *rigid_disk_page;
4159 uint32_t sectors_per_cylinder;
4163 #endif /* !__XSCALE__ */
4165 if (page_index->subpage != SMS_SUBPAGE_PAGE_0)
4166 panic("invalid subpage value %d",
4167 page_index->subpage);
4170 * Rotation rate and sectors per track are set
4171 * above. We calculate the cylinders here based on
4172 * capacity. Due to the number of heads and
4173 * sectors per track we're using, smaller arrays
4174 * may turn out to have 0 cylinders. Linux and
4175 * FreeBSD don't pay attention to these mode pages
4176 * to figure out capacity, but Solaris does. It
4177 * seems to deal with 0 cylinders just fine, and
4178 * works out a fake geometry based on the capacity.
4180 memcpy(&lun->mode_pages.rigid_disk_page[
4181 CTL_PAGE_CURRENT], &rigid_disk_page_default,
4182 sizeof(rigid_disk_page_default));
4183 memcpy(&lun->mode_pages.rigid_disk_page[
4184 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable,
4185 sizeof(rigid_disk_page_changeable));
4186 memcpy(&lun->mode_pages.rigid_disk_page[
4187 CTL_PAGE_DEFAULT], &rigid_disk_page_default,
4188 sizeof(rigid_disk_page_default));
4189 memcpy(&lun->mode_pages.rigid_disk_page[
4190 CTL_PAGE_SAVED], &rigid_disk_page_default,
4191 sizeof(rigid_disk_page_default));
4193 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK *
4197 * The divide method here will be more accurate,
4198 * probably, but results in floating point being
4199 * used in the kernel on i386 (__udivdi3()). On the
4200 * XScale, though, __udivdi3() is implemented in
4203 * The shift method for cylinder calculation is
4204 * accurate if sectors_per_cylinder is a power of
4205 * 2. Otherwise it might be slightly off -- you
4206 * might have a bit of a truncation problem.
4209 cylinders = (lun->be_lun->maxlba + 1) /
4210 sectors_per_cylinder;
4212 for (shift = 31; shift > 0; shift--) {
4213 if (sectors_per_cylinder & (1 << shift))
4216 cylinders = (lun->be_lun->maxlba + 1) >> shift;
4220 * We've basically got 3 bytes, or 24 bits for the
4221 * cylinder size in the mode page. If we're over,
4222 * just round down to 2^24.
4224 if (cylinders > 0xffffff)
4225 cylinders = 0xffffff;
4227 rigid_disk_page = &lun->mode_pages.rigid_disk_page[
4229 scsi_ulto3b(cylinders, rigid_disk_page->cylinders);
4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[
4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders);
4235 rigid_disk_page = &lun->mode_pages.rigid_disk_page[
4237 scsi_ulto3b(cylinders, rigid_disk_page->cylinders);
4239 page_index->page_data =
4240 (uint8_t *)lun->mode_pages.rigid_disk_page;
4243 case SMS_CACHING_PAGE: {
4245 if (page_index->subpage != SMS_SUBPAGE_PAGE_0)
4246 panic("invalid subpage value %d",
4247 page_index->subpage);
4249 * Defaults should be okay here, no calculations
4252 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT],
4253 &caching_page_default,
4254 sizeof(caching_page_default));
4255 memcpy(&lun->mode_pages.caching_page[
4256 CTL_PAGE_CHANGEABLE], &caching_page_changeable,
4257 sizeof(caching_page_changeable));
4258 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT],
4259 &caching_page_default,
4260 sizeof(caching_page_default));
4261 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED],
4262 &caching_page_default,
4263 sizeof(caching_page_default));
4264 page_index->page_data =
4265 (uint8_t *)lun->mode_pages.caching_page;
4268 case SMS_CONTROL_MODE_PAGE: {
4270 if (page_index->subpage != SMS_SUBPAGE_PAGE_0)
4271 panic("invalid subpage value %d",
4272 page_index->subpage);
4275 * Defaults should be okay here, no calculations
4278 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT],
4279 &control_page_default,
4280 sizeof(control_page_default));
4281 memcpy(&lun->mode_pages.control_page[
4282 CTL_PAGE_CHANGEABLE], &control_page_changeable,
4283 sizeof(control_page_changeable));
4284 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT],
4285 &control_page_default,
4286 sizeof(control_page_default));
4287 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED],
4288 &control_page_default,
4289 sizeof(control_page_default));
4290 page_index->page_data =
4291 (uint8_t *)lun->mode_pages.control_page;
4295 case SMS_VENDOR_SPECIFIC_PAGE:{
4296 switch (page_index->subpage) {
4297 case PWR_SUBPAGE_CODE: {
4298 struct copan_power_subpage *current_page,
4301 memcpy(&lun->mode_pages.power_subpage[
4303 &power_page_default,
4304 sizeof(power_page_default));
4305 memcpy(&lun->mode_pages.power_subpage[
4306 CTL_PAGE_CHANGEABLE],
4307 &power_page_changeable,
4308 sizeof(power_page_changeable));
4309 memcpy(&lun->mode_pages.power_subpage[
4311 &power_page_default,
4312 sizeof(power_page_default));
4313 memcpy(&lun->mode_pages.power_subpage[
4315 &power_page_default,
4316 sizeof(power_page_default));
4317 page_index->page_data =
4318 (uint8_t *)lun->mode_pages.power_subpage;
4320 current_page = (struct copan_power_subpage *)
4321 (page_index->page_data +
4322 (page_index->page_len *
4324 saved_page = (struct copan_power_subpage *)
4325 (page_index->page_data +
4326 (page_index->page_len *
4330 case APS_SUBPAGE_CODE: {
4331 struct copan_aps_subpage *current_page,
4334 // This gets set multiple times but
4335 // it should always be the same. It's
4336 // only done during init so who cares.
4337 index_to_aps_page = i;
4339 memcpy(&lun->mode_pages.aps_subpage[
4342 sizeof(aps_page_default));
4343 memcpy(&lun->mode_pages.aps_subpage[
4344 CTL_PAGE_CHANGEABLE],
4345 &aps_page_changeable,
4346 sizeof(aps_page_changeable));
4347 memcpy(&lun->mode_pages.aps_subpage[
4350 sizeof(aps_page_default));
4351 memcpy(&lun->mode_pages.aps_subpage[
4354 sizeof(aps_page_default));
4355 page_index->page_data =
4356 (uint8_t *)lun->mode_pages.aps_subpage;
4358 current_page = (struct copan_aps_subpage *)
4359 (page_index->page_data +
4360 (page_index->page_len *
4362 saved_page = (struct copan_aps_subpage *)
4363 (page_index->page_data +
4364 (page_index->page_len *
4368 case DBGCNF_SUBPAGE_CODE: {
4369 struct copan_debugconf_subpage *current_page,
4372 memcpy(&lun->mode_pages.debugconf_subpage[
4374 &debugconf_page_default,
4375 sizeof(debugconf_page_default));
4376 memcpy(&lun->mode_pages.debugconf_subpage[
4377 CTL_PAGE_CHANGEABLE],
4378 &debugconf_page_changeable,
4379 sizeof(debugconf_page_changeable));
4380 memcpy(&lun->mode_pages.debugconf_subpage[
4382 &debugconf_page_default,
4383 sizeof(debugconf_page_default));
4384 memcpy(&lun->mode_pages.debugconf_subpage[
4386 &debugconf_page_default,
4387 sizeof(debugconf_page_default));
4388 page_index->page_data =
4389 (uint8_t *)lun->mode_pages.debugconf_subpage;
4391 current_page = (struct copan_debugconf_subpage *)
4392 (page_index->page_data +
4393 (page_index->page_len *
4395 saved_page = (struct copan_debugconf_subpage *)
4396 (page_index->page_data +
4397 (page_index->page_len *
4402 panic("invalid subpage value %d",
4403 page_index->subpage);
4409 panic("invalid page value %d",
4410 page_index->page_code & SMPH_PC_MASK);
4415 return (CTL_RETVAL_COMPLETE);
4422 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he
4423 * wants us to allocate the LUN and he can block.
4424 * - ctl_softc is always set
4425 * - be_lun is set if the LUN has a backend (needed for disk LUNs)
4427 * Returns 0 for success, non-zero (errno) for failure.
4430 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun,
4431 struct ctl_be_lun *const be_lun, struct ctl_id target_id)
4433 struct ctl_lun *nlun, *lun;
4434 struct ctl_port *port;
4435 struct scsi_vpd_id_descriptor *desc;
4436 struct scsi_vpd_id_t10 *t10id;
4437 const char *scsiname, *vendor;
4438 int lun_number, i, lun_malloced;
4439 int devidlen, idlen1, idlen2 = 0, len;
4445 * We currently only support Direct Access or Processor LUN types.
4447 switch (be_lun->lun_type) {
4455 be_lun->lun_config_status(be_lun->be_lun,
4456 CTL_LUN_CONFIG_FAILURE);
4459 if (ctl_lun == NULL) {
4460 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK);
4467 memset(lun, 0, sizeof(*lun));
4469 lun->flags = CTL_LUN_MALLOCED;
4471 /* Generate LUN ID. */
4472 devidlen = max(CTL_DEVID_MIN_LEN,
4473 strnlen(be_lun->device_id, CTL_DEVID_LEN));
4474 idlen1 = sizeof(*t10id) + devidlen;
4475 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1;
4476 scsiname = ctl_get_opt(&be_lun->options, "scsiname");
4477 if (scsiname != NULL) {
4478 idlen2 = roundup2(strlen(scsiname) + 1, 4);
4479 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2;
4481 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len,
4482 M_CTL, M_WAITOK | M_ZERO);
4483 lun->lun_devid->len = len;
4484 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data;
4485 desc->proto_codeset = SVPD_ID_CODESET_ASCII;
4486 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10;
4487 desc->length = idlen1;
4488 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0];
4489 memset(t10id->vendor, ' ', sizeof(t10id->vendor));
4490 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) {
4491 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor));
4493 strncpy(t10id->vendor, vendor,
4494 min(sizeof(t10id->vendor), strlen(vendor)));
4496 strncpy((char *)t10id->vendor_spec_id,
4497 (char *)be_lun->device_id, devidlen);
4498 if (scsiname != NULL) {
4499 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] +
4501 desc->proto_codeset = SVPD_ID_CODESET_UTF8;
4502 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN |
4503 SVPD_ID_TYPE_SCSI_NAME;
4504 desc->length = idlen2;
4505 strlcpy(desc->identifier, scsiname, idlen2);
4508 mtx_lock(&ctl_softc->ctl_lock);
4510 * See if the caller requested a particular LUN number. If so, see
4511 * if it is available. Otherwise, allocate the first available LUN.
4513 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) {
4514 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1))
4515 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) {
4516 mtx_unlock(&ctl_softc->ctl_lock);
4517 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) {
4518 printf("ctl: requested LUN ID %d is higher "
4519 "than CTL_MAX_LUNS - 1 (%d)\n",
4520 be_lun->req_lun_id, CTL_MAX_LUNS - 1);
4523 * XXX KDM return an error, or just assign
4524 * another LUN ID in this case??
4526 printf("ctl: requested LUN ID %d is already "
4527 "in use\n", be_lun->req_lun_id);
4529 if (lun->flags & CTL_LUN_MALLOCED)
4531 be_lun->lun_config_status(be_lun->be_lun,
4532 CTL_LUN_CONFIG_FAILURE);
4535 lun_number = be_lun->req_lun_id;
4537 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS);
4538 if (lun_number == -1) {
4539 mtx_unlock(&ctl_softc->ctl_lock);
4540 printf("ctl: can't allocate LUN on target %ju, out of "
4541 "LUNs\n", (uintmax_t)target_id.id);
4542 if (lun->flags & CTL_LUN_MALLOCED)
4544 be_lun->lun_config_status(be_lun->be_lun,
4545 CTL_LUN_CONFIG_FAILURE);
4549 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number);
4551 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF);
4552 lun->target = target_id;
4553 lun->lun = lun_number;
4554 lun->be_lun = be_lun;
4556 * The processor LUN is always enabled. Disk LUNs come on line
4557 * disabled, and must be enabled by the backend.
4559 lun->flags |= CTL_LUN_DISABLED;
4560 lun->backend = be_lun->be;
4561 be_lun->ctl_lun = lun;
4562 be_lun->lun_id = lun_number;
4563 atomic_add_int(&be_lun->be->num_luns, 1);
4564 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF)
4565 lun->flags |= CTL_LUN_STOPPED;
4567 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE)
4568 lun->flags |= CTL_LUN_INOPERABLE;
4570 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY)
4571 lun->flags |= CTL_LUN_PRIMARY_SC;
4573 lun->ctl_softc = ctl_softc;
4574 TAILQ_INIT(&lun->ooa_queue);
4575 TAILQ_INIT(&lun->blocked_queue);
4576 STAILQ_INIT(&lun->error_list);
4579 * Initialize the mode page index.
4581 ctl_init_page_index(lun);
4584 * Set the poweron UA for all initiators on this LUN only.
4586 for (i = 0; i < CTL_MAX_INITIATORS; i++)
4587 lun->pending_sense[i].ua_pending = CTL_UA_POWERON;
4590 * Now, before we insert this lun on the lun list, set the lun
4591 * inventory changed UA for all other luns.
4593 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) {
4594 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
4595 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE;
4599 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links);
4601 ctl_softc->ctl_luns[lun_number] = lun;
4603 ctl_softc->num_luns++;
4605 /* Setup statistics gathering */
4606 lun->stats.device_type = be_lun->lun_type;
4607 lun->stats.lun_number = lun_number;
4608 if (lun->stats.device_type == T_DIRECT)
4609 lun->stats.blocksize = be_lun->blocksize;
4611 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE;
4612 for (i = 0;i < CTL_MAX_PORTS;i++)
4613 lun->stats.ports[i].targ_port = i;
4615 mtx_unlock(&ctl_softc->ctl_lock);
4617 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK);
4620 * Run through each registered FETD and bring it online if it isn't
4621 * already. Enable the target ID if it hasn't been enabled, and
4622 * enable this particular LUN.
4624 STAILQ_FOREACH(port, &ctl_softc->port_list, links) {
4627 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number);
4629 printf("ctl_alloc_lun: FETD %s port %d returned error "
4630 "%d for lun_enable on target %ju lun %d\n",
4631 port->port_name, port->targ_port, retval,
4632 (uintmax_t)target_id.id, lun_number);
4634 port->status |= CTL_PORT_STATUS_LUN_ONLINE;
4642 * - LUN has already been marked invalid and any pending I/O has been taken
4646 ctl_free_lun(struct ctl_lun *lun)
4648 struct ctl_softc *softc;
4650 struct ctl_port *port;
4652 struct ctl_lun *nlun;
4655 softc = lun->ctl_softc;
4657 mtx_assert(&softc->ctl_lock, MA_OWNED);
4659 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links);
4661 ctl_clear_mask(softc->ctl_lun_mask, lun->lun);
4663 softc->ctl_luns[lun->lun] = NULL;
4665 if (!TAILQ_EMPTY(&lun->ooa_queue))
4666 panic("Freeing a LUN %p with outstanding I/O!!\n", lun);
4671 * XXX KDM this scheme only works for a single target/multiple LUN
4672 * setup. It needs to be revamped for a multiple target scheme.
4674 * XXX KDM this results in port->lun_disable() getting called twice,
4675 * once when ctl_disable_lun() is called, and a second time here.
4676 * We really need to re-think the LUN disable semantics. There
4677 * should probably be several steps/levels to LUN removal:
4682 * Right now we only have a disable method when communicating to
4683 * the front end ports, at least for individual LUNs.
4686 STAILQ_FOREACH(port, &softc->port_list, links) {
4689 retval = port->lun_disable(port->targ_lun_arg, lun->target,
4692 printf("ctl_free_lun: FETD %s port %d returned error "
4693 "%d for lun_disable on target %ju lun %jd\n",
4694 port->port_name, port->targ_port, retval,
4695 (uintmax_t)lun->target.id, (intmax_t)lun->lun);
4698 if (STAILQ_FIRST(&softc->lun_list) == NULL) {
4699 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE;
4701 retval = port->targ_disable(port->targ_lun_arg,lun->target);
4703 printf("ctl_free_lun: FETD %s port %d "
4704 "returned error %d for targ_disable on "
4705 "target %ju\n", port->port_name,
4706 port->targ_port, retval,
4707 (uintmax_t)lun->target.id);
4709 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE;
4711 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0)
4715 port->port_offline(port->onoff_arg);
4716 port->status &= ~CTL_PORT_STATUS_ONLINE;
4723 * Tell the backend to free resources, if this LUN has a backend.
4725 atomic_subtract_int(&lun->be_lun->be->num_luns, 1);
4726 lun->be_lun->lun_shutdown(lun->be_lun->be_lun);
4728 mtx_destroy(&lun->lun_lock);
4729 free(lun->lun_devid, M_CTL);
4730 if (lun->flags & CTL_LUN_MALLOCED)
4733 STAILQ_FOREACH(nlun, &softc->lun_list, links) {
4734 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
4735 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE;
4743 ctl_create_lun(struct ctl_be_lun *be_lun)
4745 struct ctl_softc *ctl_softc;
4747 ctl_softc = control_softc;
4750 * ctl_alloc_lun() should handle all potential failure cases.
4752 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target);
4756 ctl_add_lun(struct ctl_be_lun *be_lun)
4758 struct ctl_softc *ctl_softc = control_softc;
4760 mtx_lock(&ctl_softc->ctl_lock);
4761 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links);
4762 mtx_unlock(&ctl_softc->ctl_lock);
4763 wakeup(&ctl_softc->pending_lun_queue);
4769 ctl_enable_lun(struct ctl_be_lun *be_lun)
4771 struct ctl_softc *ctl_softc;
4772 struct ctl_port *port, *nport;
4773 struct ctl_lun *lun;
4776 ctl_softc = control_softc;
4778 lun = (struct ctl_lun *)be_lun->ctl_lun;
4780 mtx_lock(&ctl_softc->ctl_lock);
4781 mtx_lock(&lun->lun_lock);
4782 if ((lun->flags & CTL_LUN_DISABLED) == 0) {
4784 * eh? Why did we get called if the LUN is already
4787 mtx_unlock(&lun->lun_lock);
4788 mtx_unlock(&ctl_softc->ctl_lock);
4791 lun->flags &= ~CTL_LUN_DISABLED;
4792 mtx_unlock(&lun->lun_lock);
4794 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) {
4795 nport = STAILQ_NEXT(port, links);
4798 * Drop the lock while we call the FETD's enable routine.
4799 * This can lead to a callback into CTL (at least in the
4800 * case of the internal initiator frontend.
4802 mtx_unlock(&ctl_softc->ctl_lock);
4803 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun);
4804 mtx_lock(&ctl_softc->ctl_lock);
4806 printf("%s: FETD %s port %d returned error "
4807 "%d for lun_enable on target %ju lun %jd\n",
4808 __func__, port->port_name, port->targ_port, retval,
4809 (uintmax_t)lun->target.id, (intmax_t)lun->lun);
4813 /* NOTE: TODO: why does lun enable affect port status? */
4814 port->status |= CTL_PORT_STATUS_LUN_ONLINE;
4819 mtx_unlock(&ctl_softc->ctl_lock);
4825 ctl_disable_lun(struct ctl_be_lun *be_lun)
4827 struct ctl_softc *ctl_softc;
4828 struct ctl_port *port;
4829 struct ctl_lun *lun;
4832 ctl_softc = control_softc;
4834 lun = (struct ctl_lun *)be_lun->ctl_lun;
4836 mtx_lock(&ctl_softc->ctl_lock);
4837 mtx_lock(&lun->lun_lock);
4838 if (lun->flags & CTL_LUN_DISABLED) {
4839 mtx_unlock(&lun->lun_lock);
4840 mtx_unlock(&ctl_softc->ctl_lock);
4843 lun->flags |= CTL_LUN_DISABLED;
4844 mtx_unlock(&lun->lun_lock);
4846 STAILQ_FOREACH(port, &ctl_softc->port_list, links) {
4847 mtx_unlock(&ctl_softc->ctl_lock);
4849 * Drop the lock before we call the frontend's disable
4850 * routine, to avoid lock order reversals.
4852 * XXX KDM what happens if the frontend list changes while
4853 * we're traversing it? It's unlikely, but should be handled.
4855 retval = port->lun_disable(port->targ_lun_arg, lun->target,
4857 mtx_lock(&ctl_softc->ctl_lock);
4859 printf("ctl_alloc_lun: FETD %s port %d returned error "
4860 "%d for lun_disable on target %ju lun %jd\n",
4861 port->port_name, port->targ_port, retval,
4862 (uintmax_t)lun->target.id, (intmax_t)lun->lun);
4866 mtx_unlock(&ctl_softc->ctl_lock);
4872 ctl_start_lun(struct ctl_be_lun *be_lun)
4874 struct ctl_softc *ctl_softc;
4875 struct ctl_lun *lun;
4877 ctl_softc = control_softc;
4879 lun = (struct ctl_lun *)be_lun->ctl_lun;
4881 mtx_lock(&lun->lun_lock);
4882 lun->flags &= ~CTL_LUN_STOPPED;
4883 mtx_unlock(&lun->lun_lock);
4889 ctl_stop_lun(struct ctl_be_lun *be_lun)
4891 struct ctl_softc *ctl_softc;
4892 struct ctl_lun *lun;
4894 ctl_softc = control_softc;
4896 lun = (struct ctl_lun *)be_lun->ctl_lun;
4898 mtx_lock(&lun->lun_lock);
4899 lun->flags |= CTL_LUN_STOPPED;
4900 mtx_unlock(&lun->lun_lock);
4906 ctl_lun_offline(struct ctl_be_lun *be_lun)
4908 struct ctl_softc *ctl_softc;
4909 struct ctl_lun *lun;
4911 ctl_softc = control_softc;
4913 lun = (struct ctl_lun *)be_lun->ctl_lun;
4915 mtx_lock(&lun->lun_lock);
4916 lun->flags |= CTL_LUN_OFFLINE;
4917 mtx_unlock(&lun->lun_lock);
4923 ctl_lun_online(struct ctl_be_lun *be_lun)
4925 struct ctl_softc *ctl_softc;
4926 struct ctl_lun *lun;
4928 ctl_softc = control_softc;
4930 lun = (struct ctl_lun *)be_lun->ctl_lun;
4932 mtx_lock(&lun->lun_lock);
4933 lun->flags &= ~CTL_LUN_OFFLINE;
4934 mtx_unlock(&lun->lun_lock);
4940 ctl_invalidate_lun(struct ctl_be_lun *be_lun)
4942 struct ctl_softc *ctl_softc;
4943 struct ctl_lun *lun;
4945 ctl_softc = control_softc;
4947 lun = (struct ctl_lun *)be_lun->ctl_lun;
4949 mtx_lock(&lun->lun_lock);
4952 * The LUN needs to be disabled before it can be marked invalid.
4954 if ((lun->flags & CTL_LUN_DISABLED) == 0) {
4955 mtx_unlock(&lun->lun_lock);
4959 * Mark the LUN invalid.
4961 lun->flags |= CTL_LUN_INVALID;
4964 * If there is nothing in the OOA queue, go ahead and free the LUN.
4965 * If we have something in the OOA queue, we'll free it when the
4966 * last I/O completes.
4968 if (TAILQ_EMPTY(&lun->ooa_queue)) {
4969 mtx_unlock(&lun->lun_lock);
4970 mtx_lock(&ctl_softc->ctl_lock);
4972 mtx_unlock(&ctl_softc->ctl_lock);
4974 mtx_unlock(&lun->lun_lock);
4980 ctl_lun_inoperable(struct ctl_be_lun *be_lun)
4982 struct ctl_softc *ctl_softc;
4983 struct ctl_lun *lun;
4985 ctl_softc = control_softc;
4986 lun = (struct ctl_lun *)be_lun->ctl_lun;
4988 mtx_lock(&lun->lun_lock);
4989 lun->flags |= CTL_LUN_INOPERABLE;
4990 mtx_unlock(&lun->lun_lock);
4996 ctl_lun_operable(struct ctl_be_lun *be_lun)
4998 struct ctl_softc *ctl_softc;
4999 struct ctl_lun *lun;
5001 ctl_softc = control_softc;
5002 lun = (struct ctl_lun *)be_lun->ctl_lun;
5004 mtx_lock(&lun->lun_lock);
5005 lun->flags &= ~CTL_LUN_INOPERABLE;
5006 mtx_unlock(&lun->lun_lock);
5012 ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus,
5015 struct ctl_softc *softc;
5016 struct ctl_lun *lun;
5017 struct copan_aps_subpage *current_sp;
5018 struct ctl_page_index *page_index;
5021 softc = control_softc;
5023 mtx_lock(&softc->ctl_lock);
5025 lun = (struct ctl_lun *)be_lun->ctl_lun;
5026 mtx_lock(&lun->lun_lock);
5029 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
5030 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) !=
5034 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE)
5036 page_index = &lun->mode_pages.index[i];
5039 if (page_index == NULL) {
5040 mtx_unlock(&lun->lun_lock);
5041 mtx_unlock(&softc->ctl_lock);
5042 printf("%s: APS subpage not found for lun %ju!\n", __func__,
5043 (uintmax_t)lun->lun);
5047 if ((softc->aps_locked_lun != 0)
5048 && (softc->aps_locked_lun != lun->lun)) {
5049 printf("%s: attempt to lock LUN %llu when %llu is already "
5051 mtx_unlock(&lun->lun_lock);
5052 mtx_unlock(&softc->ctl_lock);
5057 current_sp = (struct copan_aps_subpage *)(page_index->page_data +
5058 (page_index->page_len * CTL_PAGE_CURRENT));
5061 current_sp->lock_active = APS_LOCK_ACTIVE;
5062 softc->aps_locked_lun = lun->lun;
5064 current_sp->lock_active = 0;
5065 softc->aps_locked_lun = 0;
5070 * If we're in HA mode, try to send the lock message to the other
5073 if (ctl_is_single == 0) {
5075 union ctl_ha_msg lock_msg;
5077 lock_msg.hdr.nexus = *nexus;
5078 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK;
5080 lock_msg.aps.lock_flag = 1;
5082 lock_msg.aps.lock_flag = 0;
5083 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg,
5084 sizeof(lock_msg), 0);
5085 if (isc_retval > CTL_HA_STATUS_SUCCESS) {
5086 printf("%s: APS (lock=%d) error returned from "
5087 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval);
5088 mtx_unlock(&lun->lun_lock);
5089 mtx_unlock(&softc->ctl_lock);
5094 mtx_unlock(&lun->lun_lock);
5095 mtx_unlock(&softc->ctl_lock);
5101 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun)
5103 struct ctl_lun *lun;
5104 struct ctl_softc *softc;
5107 softc = control_softc;
5109 lun = (struct ctl_lun *)be_lun->ctl_lun;
5111 mtx_lock(&lun->lun_lock);
5113 for (i = 0; i < CTL_MAX_INITIATORS; i++)
5114 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED;
5116 mtx_unlock(&lun->lun_lock);
5120 * Backend "memory move is complete" callback for requests that never
5121 * make it down to say RAIDCore's configuration code.
5124 ctl_config_move_done(union ctl_io *io)
5128 retval = CTL_RETVAL_COMPLETE;
5131 CTL_DEBUG_PRINT(("ctl_config_move_done\n"));
5133 * XXX KDM this shouldn't happen, but what if it does?
5135 if (io->io_hdr.io_type != CTL_IO_SCSI)
5136 panic("I/O type isn't CTL_IO_SCSI!");
5138 if ((io->io_hdr.port_status == 0)
5139 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0)
5140 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE))
5141 io->io_hdr.status = CTL_SUCCESS;
5142 else if ((io->io_hdr.port_status != 0)
5143 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0)
5144 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){
5146 * For hardware error sense keys, the sense key
5147 * specific value is defined to be a retry count,
5148 * but we use it to pass back an internal FETD
5149 * error code. XXX KDM Hopefully the FETD is only
5150 * using 16 bits for an error code, since that's
5151 * all the space we have in the sks field.
5153 ctl_set_internal_failure(&io->scsiio,
5156 io->io_hdr.port_status);
5157 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED)
5158 free(io->scsiio.kern_data_ptr, M_CTL);
5163 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN)
5164 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
5165 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) {
5167 * XXX KDM just assuming a single pointer here, and not a
5168 * S/G list. If we start using S/G lists for config data,
5169 * we'll need to know how to clean them up here as well.
5171 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED)
5172 free(io->scsiio.kern_data_ptr, M_CTL);
5173 /* Hopefully the user has already set the status... */
5177 * XXX KDM now we need to continue data movement. Some
5179 * - call ctl_scsiio() again? We don't do this for data
5180 * writes, because for those at least we know ahead of
5181 * time where the write will go and how long it is. For
5182 * config writes, though, that information is largely
5183 * contained within the write itself, thus we need to
5184 * parse out the data again.
5186 * - Call some other function once the data is in?
5190 * XXX KDM call ctl_scsiio() again for now, and check flag
5191 * bits to see whether we're allocated or not.
5193 retval = ctl_scsiio(&io->scsiio);
5200 * This gets called by a backend driver when it is done with a
5201 * data_submit method.
5204 ctl_data_submit_done(union ctl_io *io)
5207 * If the IO_CONT flag is set, we need to call the supplied
5208 * function to continue processing the I/O, instead of completing
5211 * If there is an error, though, we don't want to keep processing.
5212 * Instead, just send status back to the initiator.
5214 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) &&
5215 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 &&
5216 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE ||
5217 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) {
5218 io->scsiio.io_cont(io);
5225 * This gets called by a backend driver when it is done with a
5226 * configuration write.
5229 ctl_config_write_done(union ctl_io *io)
5232 * If the IO_CONT flag is set, we need to call the supplied
5233 * function to continue processing the I/O, instead of completing
5236 * If there is an error, though, we don't want to keep processing.
5237 * Instead, just send status back to the initiator.
5239 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT)
5240 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)
5241 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) {
5242 io->scsiio.io_cont(io);
5246 * Since a configuration write can be done for commands that actually
5247 * have data allocated, like write buffer, and commands that have
5248 * no data, like start/stop unit, we need to check here.
5250 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT)
5251 free(io->scsiio.kern_data_ptr, M_CTL);
5256 * SCSI release command.
5259 ctl_scsi_release(struct ctl_scsiio *ctsio)
5261 int length, longid, thirdparty_id, resv_id;
5262 struct ctl_softc *ctl_softc;
5263 struct ctl_lun *lun;
5268 CTL_DEBUG_PRINT(("ctl_scsi_release\n"));
5270 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5271 ctl_softc = control_softc;
5273 switch (ctsio->cdb[0]) {
5275 struct scsi_release_10 *cdb;
5277 cdb = (struct scsi_release_10 *)ctsio->cdb;
5279 if (cdb->byte2 & SR10_LONGID)
5282 thirdparty_id = cdb->thirdparty_id;
5284 resv_id = cdb->resv_id;
5285 length = scsi_2btoul(cdb->length);
5292 * XXX KDM right now, we only support LUN reservation. We don't
5293 * support 3rd party reservations, or extent reservations, which
5294 * might actually need the parameter list. If we've gotten this
5295 * far, we've got a LUN reservation. Anything else got kicked out
5296 * above. So, according to SPC, ignore the length.
5300 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0)
5302 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK);
5303 ctsio->kern_data_len = length;
5304 ctsio->kern_total_len = length;
5305 ctsio->kern_data_resid = 0;
5306 ctsio->kern_rel_offset = 0;
5307 ctsio->kern_sg_entries = 0;
5308 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
5309 ctsio->be_move_done = ctl_config_move_done;
5310 ctl_datamove((union ctl_io *)ctsio);
5312 return (CTL_RETVAL_COMPLETE);
5316 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr);
5318 mtx_lock(&lun->lun_lock);
5321 * According to SPC, it is not an error for an intiator to attempt
5322 * to release a reservation on a LUN that isn't reserved, or that
5323 * is reserved by another initiator. The reservation can only be
5324 * released, though, by the initiator who made it or by one of
5325 * several reset type events.
5327 if (lun->flags & CTL_LUN_RESERVED) {
5328 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id)
5329 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port)
5330 && (ctsio->io_hdr.nexus.targ_target.id ==
5331 lun->rsv_nexus.targ_target.id)) {
5332 lun->flags &= ~CTL_LUN_RESERVED;
5336 mtx_unlock(&lun->lun_lock);
5338 ctsio->scsi_status = SCSI_STATUS_OK;
5339 ctsio->io_hdr.status = CTL_SUCCESS;
5341 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
5342 free(ctsio->kern_data_ptr, M_CTL);
5343 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
5346 ctl_done((union ctl_io *)ctsio);
5347 return (CTL_RETVAL_COMPLETE);
5351 ctl_scsi_reserve(struct ctl_scsiio *ctsio)
5353 int extent, thirdparty, longid;
5354 int resv_id, length;
5355 uint64_t thirdparty_id;
5356 struct ctl_softc *ctl_softc;
5357 struct ctl_lun *lun;
5366 CTL_DEBUG_PRINT(("ctl_reserve\n"));
5368 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5369 ctl_softc = control_softc;
5371 switch (ctsio->cdb[0]) {
5373 struct scsi_reserve_10 *cdb;
5375 cdb = (struct scsi_reserve_10 *)ctsio->cdb;
5377 if (cdb->byte2 & SR10_LONGID)
5380 thirdparty_id = cdb->thirdparty_id;
5382 resv_id = cdb->resv_id;
5383 length = scsi_2btoul(cdb->length);
5389 * XXX KDM right now, we only support LUN reservation. We don't
5390 * support 3rd party reservations, or extent reservations, which
5391 * might actually need the parameter list. If we've gotten this
5392 * far, we've got a LUN reservation. Anything else got kicked out
5393 * above. So, according to SPC, ignore the length.
5397 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0)
5399 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK);
5400 ctsio->kern_data_len = length;
5401 ctsio->kern_total_len = length;
5402 ctsio->kern_data_resid = 0;
5403 ctsio->kern_rel_offset = 0;
5404 ctsio->kern_sg_entries = 0;
5405 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
5406 ctsio->be_move_done = ctl_config_move_done;
5407 ctl_datamove((union ctl_io *)ctsio);
5409 return (CTL_RETVAL_COMPLETE);
5413 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr);
5415 mtx_lock(&lun->lun_lock);
5416 if (lun->flags & CTL_LUN_RESERVED) {
5417 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id)
5418 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port)
5419 || (ctsio->io_hdr.nexus.targ_target.id !=
5420 lun->rsv_nexus.targ_target.id)) {
5421 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT;
5422 ctsio->io_hdr.status = CTL_SCSI_ERROR;
5427 lun->flags |= CTL_LUN_RESERVED;
5428 lun->rsv_nexus = ctsio->io_hdr.nexus;
5430 ctsio->scsi_status = SCSI_STATUS_OK;
5431 ctsio->io_hdr.status = CTL_SUCCESS;
5434 mtx_unlock(&lun->lun_lock);
5436 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
5437 free(ctsio->kern_data_ptr, M_CTL);
5438 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
5441 ctl_done((union ctl_io *)ctsio);
5442 return (CTL_RETVAL_COMPLETE);
5446 ctl_start_stop(struct ctl_scsiio *ctsio)
5448 struct scsi_start_stop_unit *cdb;
5449 struct ctl_lun *lun;
5450 struct ctl_softc *ctl_softc;
5453 CTL_DEBUG_PRINT(("ctl_start_stop\n"));
5455 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5456 ctl_softc = control_softc;
5459 cdb = (struct scsi_start_stop_unit *)ctsio->cdb;
5463 * We don't support the immediate bit on a stop unit. In order to
5464 * do that, we would need to code up a way to know that a stop is
5465 * pending, and hold off any new commands until it completes, one
5466 * way or another. Then we could accept or reject those commands
5467 * depending on its status. We would almost need to do the reverse
5468 * of what we do below for an immediate start -- return the copy of
5469 * the ctl_io to the FETD with status to send to the host (and to
5470 * free the copy!) and then free the original I/O once the stop
5471 * actually completes. That way, the OOA queue mechanism can work
5472 * to block commands that shouldn't proceed. Another alternative
5473 * would be to put the copy in the queue in place of the original,
5474 * and return the original back to the caller. That could be
5477 if ((cdb->byte2 & SSS_IMMED)
5478 && ((cdb->how & SSS_START) == 0)) {
5479 ctl_set_invalid_field(ctsio,
5485 ctl_done((union ctl_io *)ctsio);
5486 return (CTL_RETVAL_COMPLETE);
5489 if ((lun->flags & CTL_LUN_PR_RESERVED)
5490 && ((cdb->how & SSS_START)==0)) {
5493 residx = ctl_get_resindex(&ctsio->io_hdr.nexus);
5494 if (!lun->per_res[residx].registered
5495 || (lun->pr_res_idx!=residx && lun->res_type < 4)) {
5497 ctl_set_reservation_conflict(ctsio);
5498 ctl_done((union ctl_io *)ctsio);
5499 return (CTL_RETVAL_COMPLETE);
5504 * If there is no backend on this device, we can't start or stop
5505 * it. In theory we shouldn't get any start/stop commands in the
5506 * first place at this level if the LUN doesn't have a backend.
5507 * That should get stopped by the command decode code.
5509 if (lun->backend == NULL) {
5510 ctl_set_invalid_opcode(ctsio);
5511 ctl_done((union ctl_io *)ctsio);
5512 return (CTL_RETVAL_COMPLETE);
5516 * XXX KDM Copan-specific offline behavior.
5517 * Figure out a reasonable way to port this?
5520 mtx_lock(&lun->lun_lock);
5522 if (((cdb->byte2 & SSS_ONOFFLINE) == 0)
5523 && (lun->flags & CTL_LUN_OFFLINE)) {
5525 * If the LUN is offline, and the on/offline bit isn't set,
5526 * reject the start or stop. Otherwise, let it through.
5528 mtx_unlock(&lun->lun_lock);
5529 ctl_set_lun_not_ready(ctsio);
5530 ctl_done((union ctl_io *)ctsio);
5532 mtx_unlock(&lun->lun_lock);
5533 #endif /* NEEDTOPORT */
5535 * This could be a start or a stop when we're online,
5536 * or a stop/offline or start/online. A start or stop when
5537 * we're offline is covered in the case above.
5540 * In the non-immediate case, we send the request to
5541 * the backend and return status to the user when
5544 * In the immediate case, we allocate a new ctl_io
5545 * to hold a copy of the request, and send that to
5546 * the backend. We then set good status on the
5547 * user's request and return it immediately.
5549 if (cdb->byte2 & SSS_IMMED) {
5550 union ctl_io *new_io;
5552 new_io = ctl_alloc_io(ctsio->io_hdr.pool);
5553 if (new_io == NULL) {
5554 ctl_set_busy(ctsio);
5555 ctl_done((union ctl_io *)ctsio);
5557 ctl_copy_io((union ctl_io *)ctsio,
5559 retval = lun->backend->config_write(new_io);
5560 ctl_set_success(ctsio);
5561 ctl_done((union ctl_io *)ctsio);
5564 retval = lun->backend->config_write(
5565 (union ctl_io *)ctsio);
5574 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but
5575 * we don't really do anything with the LBA and length fields if the user
5576 * passes them in. Instead we'll just flush out the cache for the entire
5580 ctl_sync_cache(struct ctl_scsiio *ctsio)
5582 struct ctl_lun *lun;
5583 struct ctl_softc *ctl_softc;
5584 uint64_t starting_lba;
5585 uint32_t block_count;
5588 CTL_DEBUG_PRINT(("ctl_sync_cache\n"));
5590 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5591 ctl_softc = control_softc;
5594 switch (ctsio->cdb[0]) {
5595 case SYNCHRONIZE_CACHE: {
5596 struct scsi_sync_cache *cdb;
5597 cdb = (struct scsi_sync_cache *)ctsio->cdb;
5599 starting_lba = scsi_4btoul(cdb->begin_lba);
5600 block_count = scsi_2btoul(cdb->lb_count);
5603 case SYNCHRONIZE_CACHE_16: {
5604 struct scsi_sync_cache_16 *cdb;
5605 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb;
5607 starting_lba = scsi_8btou64(cdb->begin_lba);
5608 block_count = scsi_4btoul(cdb->lb_count);
5612 ctl_set_invalid_opcode(ctsio);
5613 ctl_done((union ctl_io *)ctsio);
5615 break; /* NOTREACHED */
5619 * We check the LBA and length, but don't do anything with them.
5620 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to
5621 * get flushed. This check will just help satisfy anyone who wants
5622 * to see an error for an out of range LBA.
5624 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) {
5625 ctl_set_lba_out_of_range(ctsio);
5626 ctl_done((union ctl_io *)ctsio);
5631 * If this LUN has no backend, we can't flush the cache anyway.
5633 if (lun->backend == NULL) {
5634 ctl_set_invalid_opcode(ctsio);
5635 ctl_done((union ctl_io *)ctsio);
5640 * Check to see whether we're configured to send the SYNCHRONIZE
5641 * CACHE command directly to the back end.
5643 mtx_lock(&lun->lun_lock);
5644 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC)
5645 && (++(lun->sync_count) >= lun->sync_interval)) {
5646 lun->sync_count = 0;
5647 mtx_unlock(&lun->lun_lock);
5648 retval = lun->backend->config_write((union ctl_io *)ctsio);
5650 mtx_unlock(&lun->lun_lock);
5651 ctl_set_success(ctsio);
5652 ctl_done((union ctl_io *)ctsio);
5661 ctl_format(struct ctl_scsiio *ctsio)
5663 struct scsi_format *cdb;
5664 struct ctl_lun *lun;
5665 struct ctl_softc *ctl_softc;
5666 int length, defect_list_len;
5668 CTL_DEBUG_PRINT(("ctl_format\n"));
5670 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5671 ctl_softc = control_softc;
5673 cdb = (struct scsi_format *)ctsio->cdb;
5676 if (cdb->byte2 & SF_FMTDATA) {
5677 if (cdb->byte2 & SF_LONGLIST)
5678 length = sizeof(struct scsi_format_header_long);
5680 length = sizeof(struct scsi_format_header_short);
5683 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0)
5685 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK);
5686 ctsio->kern_data_len = length;
5687 ctsio->kern_total_len = length;
5688 ctsio->kern_data_resid = 0;
5689 ctsio->kern_rel_offset = 0;
5690 ctsio->kern_sg_entries = 0;
5691 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
5692 ctsio->be_move_done = ctl_config_move_done;
5693 ctl_datamove((union ctl_io *)ctsio);
5695 return (CTL_RETVAL_COMPLETE);
5698 defect_list_len = 0;
5700 if (cdb->byte2 & SF_FMTDATA) {
5701 if (cdb->byte2 & SF_LONGLIST) {
5702 struct scsi_format_header_long *header;
5704 header = (struct scsi_format_header_long *)
5705 ctsio->kern_data_ptr;
5707 defect_list_len = scsi_4btoul(header->defect_list_len);
5708 if (defect_list_len != 0) {
5709 ctl_set_invalid_field(ctsio,
5718 struct scsi_format_header_short *header;
5720 header = (struct scsi_format_header_short *)
5721 ctsio->kern_data_ptr;
5723 defect_list_len = scsi_2btoul(header->defect_list_len);
5724 if (defect_list_len != 0) {
5725 ctl_set_invalid_field(ctsio,
5737 * The format command will clear out the "Medium format corrupted"
5738 * status if set by the configuration code. That status is really
5739 * just a way to notify the host that we have lost the media, and
5740 * get them to issue a command that will basically make them think
5741 * they're blowing away the media.
5743 mtx_lock(&lun->lun_lock);
5744 lun->flags &= ~CTL_LUN_INOPERABLE;
5745 mtx_unlock(&lun->lun_lock);
5747 ctsio->scsi_status = SCSI_STATUS_OK;
5748 ctsio->io_hdr.status = CTL_SUCCESS;
5751 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) {
5752 free(ctsio->kern_data_ptr, M_CTL);
5753 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED;
5756 ctl_done((union ctl_io *)ctsio);
5757 return (CTL_RETVAL_COMPLETE);
5761 ctl_read_buffer(struct ctl_scsiio *ctsio)
5763 struct scsi_read_buffer *cdb;
5764 struct ctl_lun *lun;
5765 int buffer_offset, len;
5766 static uint8_t descr[4];
5767 static uint8_t echo_descr[4] = { 0 };
5769 CTL_DEBUG_PRINT(("ctl_read_buffer\n"));
5771 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5772 cdb = (struct scsi_read_buffer *)ctsio->cdb;
5774 if (lun->flags & CTL_LUN_PR_RESERVED) {
5778 * XXX KDM need a lock here.
5780 residx = ctl_get_resindex(&ctsio->io_hdr.nexus);
5781 if ((lun->res_type == SPR_TYPE_EX_AC
5782 && residx != lun->pr_res_idx)
5783 || ((lun->res_type == SPR_TYPE_EX_AC_RO
5784 || lun->res_type == SPR_TYPE_EX_AC_AR)
5785 && !lun->per_res[residx].registered)) {
5786 ctl_set_reservation_conflict(ctsio);
5787 ctl_done((union ctl_io *)ctsio);
5788 return (CTL_RETVAL_COMPLETE);
5792 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA &&
5793 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR &&
5794 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) {
5795 ctl_set_invalid_field(ctsio,
5801 ctl_done((union ctl_io *)ctsio);
5802 return (CTL_RETVAL_COMPLETE);
5805 len = scsi_3btoul(cdb->length);
5806 buffer_offset = scsi_3btoul(cdb->offset);
5808 if (buffer_offset + len > sizeof(lun->write_buffer)) {
5809 ctl_set_invalid_field(ctsio,
5815 ctl_done((union ctl_io *)ctsio);
5816 return (CTL_RETVAL_COMPLETE);
5819 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) {
5821 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]);
5822 ctsio->kern_data_ptr = descr;
5823 len = min(len, sizeof(descr));
5824 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) {
5825 ctsio->kern_data_ptr = echo_descr;
5826 len = min(len, sizeof(echo_descr));
5828 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset;
5829 ctsio->kern_data_len = len;
5830 ctsio->kern_total_len = len;
5831 ctsio->kern_data_resid = 0;
5832 ctsio->kern_rel_offset = 0;
5833 ctsio->kern_sg_entries = 0;
5834 ctsio->be_move_done = ctl_config_move_done;
5835 ctl_datamove((union ctl_io *)ctsio);
5837 return (CTL_RETVAL_COMPLETE);
5841 ctl_write_buffer(struct ctl_scsiio *ctsio)
5843 struct scsi_write_buffer *cdb;
5844 struct ctl_lun *lun;
5845 int buffer_offset, len;
5847 CTL_DEBUG_PRINT(("ctl_write_buffer\n"));
5849 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5850 cdb = (struct scsi_write_buffer *)ctsio->cdb;
5852 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) {
5853 ctl_set_invalid_field(ctsio,
5859 ctl_done((union ctl_io *)ctsio);
5860 return (CTL_RETVAL_COMPLETE);
5863 len = scsi_3btoul(cdb->length);
5864 buffer_offset = scsi_3btoul(cdb->offset);
5866 if (buffer_offset + len > sizeof(lun->write_buffer)) {
5867 ctl_set_invalid_field(ctsio,
5873 ctl_done((union ctl_io *)ctsio);
5874 return (CTL_RETVAL_COMPLETE);
5878 * If we've got a kernel request that hasn't been malloced yet,
5879 * malloc it and tell the caller the data buffer is here.
5881 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
5882 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset;
5883 ctsio->kern_data_len = len;
5884 ctsio->kern_total_len = len;
5885 ctsio->kern_data_resid = 0;
5886 ctsio->kern_rel_offset = 0;
5887 ctsio->kern_sg_entries = 0;
5888 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
5889 ctsio->be_move_done = ctl_config_move_done;
5890 ctl_datamove((union ctl_io *)ctsio);
5892 return (CTL_RETVAL_COMPLETE);
5895 ctl_done((union ctl_io *)ctsio);
5897 return (CTL_RETVAL_COMPLETE);
5901 ctl_write_same(struct ctl_scsiio *ctsio)
5903 struct ctl_lun *lun;
5904 struct ctl_lba_len_flags *lbalen;
5906 uint32_t num_blocks;
5910 retval = CTL_RETVAL_COMPLETE;
5912 CTL_DEBUG_PRINT(("ctl_write_same\n"));
5914 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
5916 switch (ctsio->cdb[0]) {
5917 case WRITE_SAME_10: {
5918 struct scsi_write_same_10 *cdb;
5920 cdb = (struct scsi_write_same_10 *)ctsio->cdb;
5922 lba = scsi_4btoul(cdb->addr);
5923 num_blocks = scsi_2btoul(cdb->length);
5927 case WRITE_SAME_16: {
5928 struct scsi_write_same_16 *cdb;
5930 cdb = (struct scsi_write_same_16 *)ctsio->cdb;
5932 lba = scsi_8btou64(cdb->addr);
5933 num_blocks = scsi_4btoul(cdb->length);
5939 * We got a command we don't support. This shouldn't
5940 * happen, commands should be filtered out above us.
5942 ctl_set_invalid_opcode(ctsio);
5943 ctl_done((union ctl_io *)ctsio);
5945 return (CTL_RETVAL_COMPLETE);
5946 break; /* NOTREACHED */
5950 * The first check is to make sure we're in bounds, the second
5951 * check is to catch wrap-around problems. If the lba + num blocks
5952 * is less than the lba, then we've wrapped around and the block
5953 * range is invalid anyway.
5955 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1))
5956 || ((lba + num_blocks) < lba)) {
5957 ctl_set_lba_out_of_range(ctsio);
5958 ctl_done((union ctl_io *)ctsio);
5959 return (CTL_RETVAL_COMPLETE);
5962 /* Zero number of blocks means "to the last logical block" */
5963 if (num_blocks == 0) {
5964 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) {
5965 ctl_set_invalid_field(ctsio,
5971 ctl_done((union ctl_io *)ctsio);
5972 return (CTL_RETVAL_COMPLETE);
5974 num_blocks = (lun->be_lun->maxlba + 1) - lba;
5977 len = lun->be_lun->blocksize;
5980 * If we've got a kernel request that hasn't been malloced yet,
5981 * malloc it and tell the caller the data buffer is here.
5983 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
5984 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);;
5985 ctsio->kern_data_len = len;
5986 ctsio->kern_total_len = len;
5987 ctsio->kern_data_resid = 0;
5988 ctsio->kern_rel_offset = 0;
5989 ctsio->kern_sg_entries = 0;
5990 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
5991 ctsio->be_move_done = ctl_config_move_done;
5992 ctl_datamove((union ctl_io *)ctsio);
5994 return (CTL_RETVAL_COMPLETE);
5997 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN];
5999 lbalen->len = num_blocks;
6000 lbalen->flags = byte2;
6001 retval = lun->backend->config_write((union ctl_io *)ctsio);
6007 ctl_unmap(struct ctl_scsiio *ctsio)
6009 struct ctl_lun *lun;
6010 struct scsi_unmap *cdb;
6011 struct ctl_ptr_len_flags *ptrlen;
6012 struct scsi_unmap_header *hdr;
6013 struct scsi_unmap_desc *buf, *end;
6015 uint32_t num_blocks;
6019 retval = CTL_RETVAL_COMPLETE;
6021 CTL_DEBUG_PRINT(("ctl_unmap\n"));
6023 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
6024 cdb = (struct scsi_unmap *)ctsio->cdb;
6026 len = scsi_2btoul(cdb->length);
6030 * If we've got a kernel request that hasn't been malloced yet,
6031 * malloc it and tell the caller the data buffer is here.
6033 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
6034 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);;
6035 ctsio->kern_data_len = len;
6036 ctsio->kern_total_len = len;
6037 ctsio->kern_data_resid = 0;
6038 ctsio->kern_rel_offset = 0;
6039 ctsio->kern_sg_entries = 0;
6040 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
6041 ctsio->be_move_done = ctl_config_move_done;
6042 ctl_datamove((union ctl_io *)ctsio);
6044 return (CTL_RETVAL_COMPLETE);
6047 len = ctsio->kern_total_len - ctsio->kern_data_resid;
6048 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr;
6049 if (len < sizeof (*hdr) ||
6050 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) ||
6051 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) ||
6052 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) {
6053 ctl_set_invalid_field(ctsio,
6059 ctl_done((union ctl_io *)ctsio);
6060 return (CTL_RETVAL_COMPLETE);
6062 len = scsi_2btoul(hdr->desc_length);
6063 buf = (struct scsi_unmap_desc *)(hdr + 1);
6064 end = buf + len / sizeof(*buf);
6066 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN];
6067 ptrlen->ptr = (void *)buf;
6069 ptrlen->flags = byte2;
6071 for (; buf < end; buf++) {
6072 lba = scsi_8btou64(buf->lba);
6073 num_blocks = scsi_4btoul(buf->length);
6074 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1))
6075 || ((lba + num_blocks) < lba)) {
6076 ctl_set_lba_out_of_range(ctsio);
6077 ctl_done((union ctl_io *)ctsio);
6078 return (CTL_RETVAL_COMPLETE);
6082 retval = lun->backend->config_write((union ctl_io *)ctsio);
6088 * Note that this function currently doesn't actually do anything inside
6089 * CTL to enforce things if the DQue bit is turned on.
6091 * Also note that this function can't be used in the default case, because
6092 * the DQue bit isn't set in the changeable mask for the control mode page
6093 * anyway. This is just here as an example for how to implement a page
6094 * handler, and a placeholder in case we want to allow the user to turn
6095 * tagged queueing on and off.
6097 * The D_SENSE bit handling is functional, however, and will turn
6098 * descriptor sense on and off for a given LUN.
6101 ctl_control_page_handler(struct ctl_scsiio *ctsio,
6102 struct ctl_page_index *page_index, uint8_t *page_ptr)
6104 struct scsi_control_page *current_cp, *saved_cp, *user_cp;
6105 struct ctl_lun *lun;
6106 struct ctl_softc *softc;
6110 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
6111 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus);
6114 user_cp = (struct scsi_control_page *)page_ptr;
6115 current_cp = (struct scsi_control_page *)
6116 (page_index->page_data + (page_index->page_len *
6118 saved_cp = (struct scsi_control_page *)
6119 (page_index->page_data + (page_index->page_len *
6122 softc = control_softc;
6124 mtx_lock(&lun->lun_lock);
6125 if (((current_cp->rlec & SCP_DSENSE) == 0)
6126 && ((user_cp->rlec & SCP_DSENSE) != 0)) {
6128 * Descriptor sense is currently turned off and the user
6129 * wants to turn it on.
6131 current_cp->rlec |= SCP_DSENSE;
6132 saved_cp->rlec |= SCP_DSENSE;
6133 lun->flags |= CTL_LUN_SENSE_DESC;
6135 } else if (((current_cp->rlec & SCP_DSENSE) != 0)
6136 && ((user_cp->rlec & SCP_DSENSE) == 0)) {
6138 * Descriptor sense is currently turned on, and the user
6139 * wants to turn it off.
6141 current_cp->rlec &= ~SCP_DSENSE;
6142 saved_cp->rlec &= ~SCP_DSENSE;
6143 lun->flags &= ~CTL_LUN_SENSE_DESC;
6146 if (current_cp->queue_flags & SCP_QUEUE_DQUE) {
6147 if (user_cp->queue_flags & SCP_QUEUE_DQUE) {
6149 csevent_log(CSC_CTL | CSC_SHELF_SW |
6151 csevent_LogType_Trace,
6152 csevent_Severity_Information,
6153 csevent_AlertLevel_Green,
6154 csevent_FRU_Firmware,
6155 csevent_FRU_Unknown,
6156 "Received untagged to untagged transition");
6157 #endif /* NEEDTOPORT */
6160 csevent_log(CSC_CTL | CSC_SHELF_SW |
6162 csevent_LogType_ConfigChange,
6163 csevent_Severity_Information,
6164 csevent_AlertLevel_Green,
6165 csevent_FRU_Firmware,
6166 csevent_FRU_Unknown,
6167 "Received untagged to tagged "
6168 "queueing transition");
6169 #endif /* NEEDTOPORT */
6171 current_cp->queue_flags &= ~SCP_QUEUE_DQUE;
6172 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE;
6176 if (user_cp->queue_flags & SCP_QUEUE_DQUE) {
6178 csevent_log(CSC_CTL | CSC_SHELF_SW |
6180 csevent_LogType_ConfigChange,
6181 csevent_Severity_Warning,
6182 csevent_AlertLevel_Yellow,
6183 csevent_FRU_Firmware,
6184 csevent_FRU_Unknown,
6185 "Received tagged queueing to untagged "
6187 #endif /* NEEDTOPORT */
6189 current_cp->queue_flags |= SCP_QUEUE_DQUE;
6190 saved_cp->queue_flags |= SCP_QUEUE_DQUE;
6194 csevent_log(CSC_CTL | CSC_SHELF_SW |
6196 csevent_LogType_Trace,
6197 csevent_Severity_Information,
6198 csevent_AlertLevel_Green,
6199 csevent_FRU_Firmware,
6200 csevent_FRU_Unknown,
6201 "Received tagged queueing to tagged "
6202 "queueing transition");
6203 #endif /* NEEDTOPORT */
6209 * Let other initiators know that the mode
6210 * parameters for this LUN have changed.
6212 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
6216 lun->pending_sense[i].ua_pending |=
6220 mtx_unlock(&lun->lun_lock);
6226 ctl_power_sp_handler(struct ctl_scsiio *ctsio,
6227 struct ctl_page_index *page_index, uint8_t *page_ptr)
6233 ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio,
6234 struct ctl_page_index *page_index, int pc)
6236 struct copan_power_subpage *page;
6238 page = (struct copan_power_subpage *)page_index->page_data +
6239 (page_index->page_len * pc);
6242 case SMS_PAGE_CTRL_CHANGEABLE >> 6:
6244 * We don't update the changable bits for this page.
6247 case SMS_PAGE_CTRL_CURRENT >> 6:
6248 case SMS_PAGE_CTRL_DEFAULT >> 6:
6249 case SMS_PAGE_CTRL_SAVED >> 6:
6251 ctl_update_power_subpage(page);
6256 EPRINT(0, "Invalid PC %d!!", pc);
6265 ctl_aps_sp_handler(struct ctl_scsiio *ctsio,
6266 struct ctl_page_index *page_index, uint8_t *page_ptr)
6268 struct copan_aps_subpage *user_sp;
6269 struct copan_aps_subpage *current_sp;
6270 union ctl_modepage_info *modepage_info;
6271 struct ctl_softc *softc;
6272 struct ctl_lun *lun;
6275 retval = CTL_RETVAL_COMPLETE;
6276 current_sp = (struct copan_aps_subpage *)(page_index->page_data +
6277 (page_index->page_len * CTL_PAGE_CURRENT));
6278 softc = control_softc;
6279 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
6281 user_sp = (struct copan_aps_subpage *)page_ptr;
6283 modepage_info = (union ctl_modepage_info *)
6284 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes;
6286 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK;
6287 modepage_info->header.subpage = page_index->subpage;
6288 modepage_info->aps.lock_active = user_sp->lock_active;
6290 mtx_lock(&softc->ctl_lock);
6293 * If there is a request to lock the LUN and another LUN is locked
6294 * this is an error. If the requested LUN is already locked ignore
6295 * the request. If no LUN is locked attempt to lock it.
6296 * if there is a request to unlock the LUN and the LUN is currently
6297 * locked attempt to unlock it. Otherwise ignore the request. i.e.
6298 * if another LUN is locked or no LUN is locked.
6300 if (user_sp->lock_active & APS_LOCK_ACTIVE) {
6301 if (softc->aps_locked_lun == lun->lun) {
6303 * This LUN is already locked, so we're done.
6305 retval = CTL_RETVAL_COMPLETE;
6306 } else if (softc->aps_locked_lun == 0) {
6308 * No one has the lock, pass the request to the
6311 retval = lun->backend->config_write(
6312 (union ctl_io *)ctsio);
6315 * Someone else has the lock, throw out the request.
6317 ctl_set_already_locked(ctsio);
6318 free(ctsio->kern_data_ptr, M_CTL);
6319 ctl_done((union ctl_io *)ctsio);
6322 * Set the return value so that ctl_do_mode_select()
6323 * won't try to complete the command. We already
6324 * completed it here.
6326 retval = CTL_RETVAL_ERROR;
6328 } else if (softc->aps_locked_lun == lun->lun) {
6330 * This LUN is locked, so pass the unlock request to the
6333 retval = lun->backend->config_write((union ctl_io *)ctsio);
6335 mtx_unlock(&softc->ctl_lock);
6341 ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio,
6342 struct ctl_page_index *page_index,
6348 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs;
6353 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs));
6354 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs);
6355 printf("page data:");
6357 printf(" %.2x",page_ptr[i]);
6363 ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio,
6364 struct ctl_page_index *page_index,
6367 struct copan_debugconf_subpage *page;
6369 page = (struct copan_debugconf_subpage *)page_index->page_data +
6370 (page_index->page_len * pc);
6373 case SMS_PAGE_CTRL_CHANGEABLE >> 6:
6374 case SMS_PAGE_CTRL_DEFAULT >> 6:
6375 case SMS_PAGE_CTRL_SAVED >> 6:
6377 * We don't update the changable or default bits for this page.
6380 case SMS_PAGE_CTRL_CURRENT >> 6:
6381 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8;
6382 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0;
6386 EPRINT(0, "Invalid PC %d!!", pc);
6387 #endif /* NEEDTOPORT */
6395 ctl_do_mode_select(union ctl_io *io)
6397 struct scsi_mode_page_header *page_header;
6398 struct ctl_page_index *page_index;
6399 struct ctl_scsiio *ctsio;
6400 int control_dev, page_len;
6401 int page_len_offset, page_len_size;
6402 union ctl_modepage_info *modepage_info;
6403 struct ctl_lun *lun;
6404 int *len_left, *len_used;
6407 ctsio = &io->scsiio;
6410 retval = CTL_RETVAL_COMPLETE;
6412 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
6414 if (lun->be_lun->lun_type != T_DIRECT)
6419 modepage_info = (union ctl_modepage_info *)
6420 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes;
6421 len_left = &modepage_info->header.len_left;
6422 len_used = &modepage_info->header.len_used;
6426 page_header = (struct scsi_mode_page_header *)
6427 (ctsio->kern_data_ptr + *len_used);
6429 if (*len_left == 0) {
6430 free(ctsio->kern_data_ptr, M_CTL);
6431 ctl_set_success(ctsio);
6432 ctl_done((union ctl_io *)ctsio);
6433 return (CTL_RETVAL_COMPLETE);
6434 } else if (*len_left < sizeof(struct scsi_mode_page_header)) {
6436 free(ctsio->kern_data_ptr, M_CTL);
6437 ctl_set_param_len_error(ctsio);
6438 ctl_done((union ctl_io *)ctsio);
6439 return (CTL_RETVAL_COMPLETE);
6441 } else if ((page_header->page_code & SMPH_SPF)
6442 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) {
6444 free(ctsio->kern_data_ptr, M_CTL);
6445 ctl_set_param_len_error(ctsio);
6446 ctl_done((union ctl_io *)ctsio);
6447 return (CTL_RETVAL_COMPLETE);
6452 * XXX KDM should we do something with the block descriptor?
6454 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
6456 if ((control_dev != 0)
6457 && (lun->mode_pages.index[i].page_flags &
6458 CTL_PAGE_FLAG_DISK_ONLY))
6461 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) !=
6462 (page_header->page_code & SMPH_PC_MASK))
6466 * If neither page has a subpage code, then we've got a
6469 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0)
6470 && ((page_header->page_code & SMPH_SPF) == 0)) {
6471 page_index = &lun->mode_pages.index[i];
6472 page_len = page_header->page_length;
6477 * If both pages have subpages, then the subpage numbers
6480 if ((lun->mode_pages.index[i].page_code & SMPH_SPF)
6481 && (page_header->page_code & SMPH_SPF)) {
6482 struct scsi_mode_page_header_sp *sph;
6484 sph = (struct scsi_mode_page_header_sp *)page_header;
6486 if (lun->mode_pages.index[i].subpage ==
6488 page_index = &lun->mode_pages.index[i];
6489 page_len = scsi_2btoul(sph->page_length);
6496 * If we couldn't find the page, or if we don't have a mode select
6497 * handler for it, send back an error to the user.
6499 if ((page_index == NULL)
6500 || (page_index->select_handler == NULL)) {
6501 ctl_set_invalid_field(ctsio,
6504 /*field*/ *len_used,
6507 free(ctsio->kern_data_ptr, M_CTL);
6508 ctl_done((union ctl_io *)ctsio);
6509 return (CTL_RETVAL_COMPLETE);
6512 if (page_index->page_code & SMPH_SPF) {
6513 page_len_offset = 2;
6517 page_len_offset = 1;
6521 * If the length the initiator gives us isn't the one we specify in
6522 * the mode page header, or if they didn't specify enough data in
6523 * the CDB to avoid truncating this page, kick out the request.
6525 if ((page_len != (page_index->page_len - page_len_offset -
6527 || (*len_left < page_index->page_len)) {
6530 ctl_set_invalid_field(ctsio,
6533 /*field*/ *len_used + page_len_offset,
6536 free(ctsio->kern_data_ptr, M_CTL);
6537 ctl_done((union ctl_io *)ctsio);
6538 return (CTL_RETVAL_COMPLETE);
6542 * Run through the mode page, checking to make sure that the bits
6543 * the user changed are actually legal for him to change.
6545 for (i = 0; i < page_index->page_len; i++) {
6546 uint8_t *user_byte, *change_mask, *current_byte;
6550 user_byte = (uint8_t *)page_header + i;
6551 change_mask = page_index->page_data +
6552 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i;
6553 current_byte = page_index->page_data +
6554 (page_index->page_len * CTL_PAGE_CURRENT) + i;
6557 * Check to see whether the user set any bits in this byte
6558 * that he is not allowed to set.
6560 if ((*user_byte & ~(*change_mask)) ==
6561 (*current_byte & ~(*change_mask)))
6565 * Go through bit by bit to determine which one is illegal.
6568 for (j = 7; j >= 0; j--) {
6569 if ((((1 << i) & ~(*change_mask)) & *user_byte) !=
6570 (((1 << i) & ~(*change_mask)) & *current_byte)) {
6575 ctl_set_invalid_field(ctsio,
6578 /*field*/ *len_used + i,
6581 free(ctsio->kern_data_ptr, M_CTL);
6582 ctl_done((union ctl_io *)ctsio);
6583 return (CTL_RETVAL_COMPLETE);
6587 * Decrement these before we call the page handler, since we may
6588 * end up getting called back one way or another before the handler
6589 * returns to this context.
6591 *len_left -= page_index->page_len;
6592 *len_used += page_index->page_len;
6594 retval = page_index->select_handler(ctsio, page_index,
6595 (uint8_t *)page_header);
6598 * If the page handler returns CTL_RETVAL_QUEUED, then we need to
6599 * wait until this queued command completes to finish processing
6600 * the mode page. If it returns anything other than
6601 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have
6602 * already set the sense information, freed the data pointer, and
6603 * completed the io for us.
6605 if (retval != CTL_RETVAL_COMPLETE)
6606 goto bailout_no_done;
6609 * If the initiator sent us more than one page, parse the next one.
6614 ctl_set_success(ctsio);
6615 free(ctsio->kern_data_ptr, M_CTL);
6616 ctl_done((union ctl_io *)ctsio);
6620 return (CTL_RETVAL_COMPLETE);
6625 ctl_mode_select(struct ctl_scsiio *ctsio)
6627 int param_len, pf, sp;
6628 int header_size, bd_len;
6629 int len_left, len_used;
6630 struct ctl_page_index *page_index;
6631 struct ctl_lun *lun;
6632 int control_dev, page_len;
6633 union ctl_modepage_info *modepage_info;
6645 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
6647 if (lun->be_lun->lun_type != T_DIRECT)
6652 switch (ctsio->cdb[0]) {
6653 case MODE_SELECT_6: {
6654 struct scsi_mode_select_6 *cdb;
6656 cdb = (struct scsi_mode_select_6 *)ctsio->cdb;
6658 pf = (cdb->byte2 & SMS_PF) ? 1 : 0;
6659 sp = (cdb->byte2 & SMS_SP) ? 1 : 0;
6661 param_len = cdb->length;
6662 header_size = sizeof(struct scsi_mode_header_6);
6665 case MODE_SELECT_10: {
6666 struct scsi_mode_select_10 *cdb;
6668 cdb = (struct scsi_mode_select_10 *)ctsio->cdb;
6670 pf = (cdb->byte2 & SMS_PF) ? 1 : 0;
6671 sp = (cdb->byte2 & SMS_SP) ? 1 : 0;
6673 param_len = scsi_2btoul(cdb->length);
6674 header_size = sizeof(struct scsi_mode_header_10);
6678 ctl_set_invalid_opcode(ctsio);
6679 ctl_done((union ctl_io *)ctsio);
6680 return (CTL_RETVAL_COMPLETE);
6681 break; /* NOTREACHED */
6686 * "A parameter list length of zero indicates that the Data-Out Buffer
6687 * shall be empty. This condition shall not be considered as an error."
6689 if (param_len == 0) {
6690 ctl_set_success(ctsio);
6691 ctl_done((union ctl_io *)ctsio);
6692 return (CTL_RETVAL_COMPLETE);
6696 * Since we'll hit this the first time through, prior to
6697 * allocation, we don't need to free a data buffer here.
6699 if (param_len < header_size) {
6700 ctl_set_param_len_error(ctsio);
6701 ctl_done((union ctl_io *)ctsio);
6702 return (CTL_RETVAL_COMPLETE);
6706 * Allocate the data buffer and grab the user's data. In theory,
6707 * we shouldn't have to sanity check the parameter list length here
6708 * because the maximum size is 64K. We should be able to malloc
6709 * that much without too many problems.
6711 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
6712 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK);
6713 ctsio->kern_data_len = param_len;
6714 ctsio->kern_total_len = param_len;
6715 ctsio->kern_data_resid = 0;
6716 ctsio->kern_rel_offset = 0;
6717 ctsio->kern_sg_entries = 0;
6718 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
6719 ctsio->be_move_done = ctl_config_move_done;
6720 ctl_datamove((union ctl_io *)ctsio);
6722 return (CTL_RETVAL_COMPLETE);
6725 switch (ctsio->cdb[0]) {
6726 case MODE_SELECT_6: {
6727 struct scsi_mode_header_6 *mh6;
6729 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr;
6730 bd_len = mh6->blk_desc_len;
6733 case MODE_SELECT_10: {
6734 struct scsi_mode_header_10 *mh10;
6736 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr;
6737 bd_len = scsi_2btoul(mh10->blk_desc_len);
6741 panic("Invalid CDB type %#x", ctsio->cdb[0]);
6745 if (param_len < (header_size + bd_len)) {
6746 free(ctsio->kern_data_ptr, M_CTL);
6747 ctl_set_param_len_error(ctsio);
6748 ctl_done((union ctl_io *)ctsio);
6749 return (CTL_RETVAL_COMPLETE);
6753 * Set the IO_CONT flag, so that if this I/O gets passed to
6754 * ctl_config_write_done(), it'll get passed back to
6755 * ctl_do_mode_select() for further processing, or completion if
6758 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT;
6759 ctsio->io_cont = ctl_do_mode_select;
6761 modepage_info = (union ctl_modepage_info *)
6762 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes;
6764 memset(modepage_info, 0, sizeof(*modepage_info));
6766 len_left = param_len - header_size - bd_len;
6767 len_used = header_size + bd_len;
6769 modepage_info->header.len_left = len_left;
6770 modepage_info->header.len_used = len_used;
6772 return (ctl_do_mode_select((union ctl_io *)ctsio));
6776 ctl_mode_sense(struct ctl_scsiio *ctsio)
6778 struct ctl_lun *lun;
6779 int pc, page_code, dbd, llba, subpage;
6780 int alloc_len, page_len, header_len, total_len;
6781 struct scsi_mode_block_descr *block_desc;
6782 struct ctl_page_index *page_index;
6790 CTL_DEBUG_PRINT(("ctl_mode_sense\n"));
6792 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
6794 if (lun->be_lun->lun_type != T_DIRECT)
6799 if (lun->flags & CTL_LUN_PR_RESERVED) {
6803 * XXX KDM need a lock here.
6805 residx = ctl_get_resindex(&ctsio->io_hdr.nexus);
6806 if ((lun->res_type == SPR_TYPE_EX_AC
6807 && residx != lun->pr_res_idx)
6808 || ((lun->res_type == SPR_TYPE_EX_AC_RO
6809 || lun->res_type == SPR_TYPE_EX_AC_AR)
6810 && !lun->per_res[residx].registered)) {
6811 ctl_set_reservation_conflict(ctsio);
6812 ctl_done((union ctl_io *)ctsio);
6813 return (CTL_RETVAL_COMPLETE);
6817 switch (ctsio->cdb[0]) {
6818 case MODE_SENSE_6: {
6819 struct scsi_mode_sense_6 *cdb;
6821 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb;
6823 header_len = sizeof(struct scsi_mode_hdr_6);
6824 if (cdb->byte2 & SMS_DBD)
6827 header_len += sizeof(struct scsi_mode_block_descr);
6829 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6;
6830 page_code = cdb->page & SMS_PAGE_CODE;
6831 subpage = cdb->subpage;
6832 alloc_len = cdb->length;
6835 case MODE_SENSE_10: {
6836 struct scsi_mode_sense_10 *cdb;
6838 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb;
6840 header_len = sizeof(struct scsi_mode_hdr_10);
6842 if (cdb->byte2 & SMS_DBD)
6845 header_len += sizeof(struct scsi_mode_block_descr);
6846 if (cdb->byte2 & SMS10_LLBAA)
6848 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6;
6849 page_code = cdb->page & SMS_PAGE_CODE;
6850 subpage = cdb->subpage;
6851 alloc_len = scsi_2btoul(cdb->length);
6855 ctl_set_invalid_opcode(ctsio);
6856 ctl_done((union ctl_io *)ctsio);
6857 return (CTL_RETVAL_COMPLETE);
6858 break; /* NOTREACHED */
6862 * We have to make a first pass through to calculate the size of
6863 * the pages that match the user's query. Then we allocate enough
6864 * memory to hold it, and actually copy the data into the buffer.
6866 switch (page_code) {
6867 case SMS_ALL_PAGES_PAGE: {
6873 * At the moment, values other than 0 and 0xff here are
6874 * reserved according to SPC-3.
6876 if ((subpage != SMS_SUBPAGE_PAGE_0)
6877 && (subpage != SMS_SUBPAGE_ALL)) {
6878 ctl_set_invalid_field(ctsio,
6884 ctl_done((union ctl_io *)ctsio);
6885 return (CTL_RETVAL_COMPLETE);
6888 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
6889 if ((control_dev != 0)
6890 && (lun->mode_pages.index[i].page_flags &
6891 CTL_PAGE_FLAG_DISK_ONLY))
6895 * We don't use this subpage if the user didn't
6896 * request all subpages.
6898 if ((lun->mode_pages.index[i].subpage != 0)
6899 && (subpage == SMS_SUBPAGE_PAGE_0))
6903 printf("found page %#x len %d\n",
6904 lun->mode_pages.index[i].page_code &
6906 lun->mode_pages.index[i].page_len);
6908 page_len += lun->mode_pages.index[i].page_len;
6917 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
6918 /* Look for the right page code */
6919 if ((lun->mode_pages.index[i].page_code &
6920 SMPH_PC_MASK) != page_code)
6923 /* Look for the right subpage or the subpage wildcard*/
6924 if ((lun->mode_pages.index[i].subpage != subpage)
6925 && (subpage != SMS_SUBPAGE_ALL))
6928 /* Make sure the page is supported for this dev type */
6929 if ((control_dev != 0)
6930 && (lun->mode_pages.index[i].page_flags &
6931 CTL_PAGE_FLAG_DISK_ONLY))
6935 printf("found page %#x len %d\n",
6936 lun->mode_pages.index[i].page_code &
6938 lun->mode_pages.index[i].page_len);
6941 page_len += lun->mode_pages.index[i].page_len;
6944 if (page_len == 0) {
6945 ctl_set_invalid_field(ctsio,
6951 ctl_done((union ctl_io *)ctsio);
6952 return (CTL_RETVAL_COMPLETE);
6958 total_len = header_len + page_len;
6960 printf("header_len = %d, page_len = %d, total_len = %d\n",
6961 header_len, page_len, total_len);
6964 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
6965 ctsio->kern_sg_entries = 0;
6966 ctsio->kern_data_resid = 0;
6967 ctsio->kern_rel_offset = 0;
6968 if (total_len < alloc_len) {
6969 ctsio->residual = alloc_len - total_len;
6970 ctsio->kern_data_len = total_len;
6971 ctsio->kern_total_len = total_len;
6973 ctsio->residual = 0;
6974 ctsio->kern_data_len = alloc_len;
6975 ctsio->kern_total_len = alloc_len;
6978 switch (ctsio->cdb[0]) {
6979 case MODE_SENSE_6: {
6980 struct scsi_mode_hdr_6 *header;
6982 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr;
6984 header->datalen = ctl_min(total_len - 1, 254);
6987 header->block_descr_len = 0;
6989 header->block_descr_len =
6990 sizeof(struct scsi_mode_block_descr);
6991 block_desc = (struct scsi_mode_block_descr *)&header[1];
6994 case MODE_SENSE_10: {
6995 struct scsi_mode_hdr_10 *header;
6998 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr;
7000 datalen = ctl_min(total_len - 2, 65533);
7001 scsi_ulto2b(datalen, header->datalen);
7003 scsi_ulto2b(0, header->block_descr_len);
7005 scsi_ulto2b(sizeof(struct scsi_mode_block_descr),
7006 header->block_descr_len);
7007 block_desc = (struct scsi_mode_block_descr *)&header[1];
7011 panic("invalid CDB type %#x", ctsio->cdb[0]);
7012 break; /* NOTREACHED */
7016 * If we've got a disk, use its blocksize in the block
7017 * descriptor. Otherwise, just set it to 0.
7020 if (control_dev != 0)
7021 scsi_ulto3b(lun->be_lun->blocksize,
7022 block_desc->block_len);
7024 scsi_ulto3b(0, block_desc->block_len);
7027 switch (page_code) {
7028 case SMS_ALL_PAGES_PAGE: {
7031 data_used = header_len;
7032 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
7033 struct ctl_page_index *page_index;
7035 page_index = &lun->mode_pages.index[i];
7037 if ((control_dev != 0)
7038 && (page_index->page_flags &
7039 CTL_PAGE_FLAG_DISK_ONLY))
7043 * We don't use this subpage if the user didn't
7044 * request all subpages. We already checked (above)
7045 * to make sure the user only specified a subpage
7046 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case.
7048 if ((page_index->subpage != 0)
7049 && (subpage == SMS_SUBPAGE_PAGE_0))
7053 * Call the handler, if it exists, to update the
7054 * page to the latest values.
7056 if (page_index->sense_handler != NULL)
7057 page_index->sense_handler(ctsio, page_index,pc);
7059 memcpy(ctsio->kern_data_ptr + data_used,
7060 page_index->page_data +
7061 (page_index->page_len * pc),
7062 page_index->page_len);
7063 data_used += page_index->page_len;
7070 data_used = header_len;
7072 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) {
7073 struct ctl_page_index *page_index;
7075 page_index = &lun->mode_pages.index[i];
7077 /* Look for the right page code */
7078 if ((page_index->page_code & SMPH_PC_MASK) != page_code)
7081 /* Look for the right subpage or the subpage wildcard*/
7082 if ((page_index->subpage != subpage)
7083 && (subpage != SMS_SUBPAGE_ALL))
7086 /* Make sure the page is supported for this dev type */
7087 if ((control_dev != 0)
7088 && (page_index->page_flags &
7089 CTL_PAGE_FLAG_DISK_ONLY))
7093 * Call the handler, if it exists, to update the
7094 * page to the latest values.
7096 if (page_index->sense_handler != NULL)
7097 page_index->sense_handler(ctsio, page_index,pc);
7099 memcpy(ctsio->kern_data_ptr + data_used,
7100 page_index->page_data +
7101 (page_index->page_len * pc),
7102 page_index->page_len);
7103 data_used += page_index->page_len;
7109 ctsio->scsi_status = SCSI_STATUS_OK;
7111 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7112 ctsio->be_move_done = ctl_config_move_done;
7113 ctl_datamove((union ctl_io *)ctsio);
7115 return (CTL_RETVAL_COMPLETE);
7119 ctl_read_capacity(struct ctl_scsiio *ctsio)
7121 struct scsi_read_capacity *cdb;
7122 struct scsi_read_capacity_data *data;
7123 struct ctl_lun *lun;
7126 CTL_DEBUG_PRINT(("ctl_read_capacity\n"));
7128 cdb = (struct scsi_read_capacity *)ctsio->cdb;
7130 lba = scsi_4btoul(cdb->addr);
7131 if (((cdb->pmi & SRC_PMI) == 0)
7133 ctl_set_invalid_field(/*ctsio*/ ctsio,
7139 ctl_done((union ctl_io *)ctsio);
7140 return (CTL_RETVAL_COMPLETE);
7143 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7145 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO);
7146 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr;
7147 ctsio->residual = 0;
7148 ctsio->kern_data_len = sizeof(*data);
7149 ctsio->kern_total_len = sizeof(*data);
7150 ctsio->kern_data_resid = 0;
7151 ctsio->kern_rel_offset = 0;
7152 ctsio->kern_sg_entries = 0;
7155 * If the maximum LBA is greater than 0xfffffffe, the user must
7156 * issue a SERVICE ACTION IN (16) command, with the read capacity
7157 * serivce action set.
7159 if (lun->be_lun->maxlba > 0xfffffffe)
7160 scsi_ulto4b(0xffffffff, data->addr);
7162 scsi_ulto4b(lun->be_lun->maxlba, data->addr);
7165 * XXX KDM this may not be 512 bytes...
7167 scsi_ulto4b(lun->be_lun->blocksize, data->length);
7169 ctsio->scsi_status = SCSI_STATUS_OK;
7171 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7172 ctsio->be_move_done = ctl_config_move_done;
7173 ctl_datamove((union ctl_io *)ctsio);
7175 return (CTL_RETVAL_COMPLETE);
7179 ctl_read_capacity_16(struct ctl_scsiio *ctsio)
7181 struct scsi_read_capacity_16 *cdb;
7182 struct scsi_read_capacity_data_long *data;
7183 struct ctl_lun *lun;
7187 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n"));
7189 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb;
7191 alloc_len = scsi_4btoul(cdb->alloc_len);
7192 lba = scsi_8btou64(cdb->addr);
7194 if ((cdb->reladr & SRC16_PMI)
7196 ctl_set_invalid_field(/*ctsio*/ ctsio,
7202 ctl_done((union ctl_io *)ctsio);
7203 return (CTL_RETVAL_COMPLETE);
7206 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7208 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO);
7209 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr;
7211 if (sizeof(*data) < alloc_len) {
7212 ctsio->residual = alloc_len - sizeof(*data);
7213 ctsio->kern_data_len = sizeof(*data);
7214 ctsio->kern_total_len = sizeof(*data);
7216 ctsio->residual = 0;
7217 ctsio->kern_data_len = alloc_len;
7218 ctsio->kern_total_len = alloc_len;
7220 ctsio->kern_data_resid = 0;
7221 ctsio->kern_rel_offset = 0;
7222 ctsio->kern_sg_entries = 0;
7224 scsi_u64to8b(lun->be_lun->maxlba, data->addr);
7225 /* XXX KDM this may not be 512 bytes... */
7226 scsi_ulto4b(lun->be_lun->blocksize, data->length);
7227 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE;
7228 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp);
7229 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
7230 data->lalba_lbp[0] |= SRC16_LBPME;
7232 ctsio->scsi_status = SCSI_STATUS_OK;
7234 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7235 ctsio->be_move_done = ctl_config_move_done;
7236 ctl_datamove((union ctl_io *)ctsio);
7238 return (CTL_RETVAL_COMPLETE);
7242 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio)
7244 struct scsi_maintenance_in *cdb;
7246 int alloc_len, ext, total_len = 0, g, p, pc, pg;
7247 int num_target_port_groups, num_target_ports, single;
7248 struct ctl_lun *lun;
7249 struct ctl_softc *softc;
7250 struct ctl_port *port;
7251 struct scsi_target_group_data *rtg_ptr;
7252 struct scsi_target_group_data_extended *rtg_ext_ptr;
7253 struct scsi_target_port_group_descriptor *tpg_desc;
7255 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n"));
7257 cdb = (struct scsi_maintenance_in *)ctsio->cdb;
7258 softc = control_softc;
7259 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7261 retval = CTL_RETVAL_COMPLETE;
7263 switch (cdb->byte2 & STG_PDF_MASK) {
7264 case STG_PDF_LENGTH:
7267 case STG_PDF_EXTENDED:
7271 ctl_set_invalid_field(/*ctsio*/ ctsio,
7277 ctl_done((union ctl_io *)ctsio);
7281 single = ctl_is_single;
7283 num_target_port_groups = 1;
7285 num_target_port_groups = NUM_TARGET_PORT_GROUPS;
7286 num_target_ports = 0;
7287 mtx_lock(&softc->ctl_lock);
7288 STAILQ_FOREACH(port, &softc->port_list, links) {
7289 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0)
7291 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS)
7295 mtx_unlock(&softc->ctl_lock);
7298 total_len = sizeof(struct scsi_target_group_data_extended);
7300 total_len = sizeof(struct scsi_target_group_data);
7301 total_len += sizeof(struct scsi_target_port_group_descriptor) *
7302 num_target_port_groups +
7303 sizeof(struct scsi_target_port_descriptor) *
7304 num_target_ports * num_target_port_groups;
7306 alloc_len = scsi_4btoul(cdb->length);
7308 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
7310 ctsio->kern_sg_entries = 0;
7312 if (total_len < alloc_len) {
7313 ctsio->residual = alloc_len - total_len;
7314 ctsio->kern_data_len = total_len;
7315 ctsio->kern_total_len = total_len;
7317 ctsio->residual = 0;
7318 ctsio->kern_data_len = alloc_len;
7319 ctsio->kern_total_len = alloc_len;
7321 ctsio->kern_data_resid = 0;
7322 ctsio->kern_rel_offset = 0;
7325 rtg_ext_ptr = (struct scsi_target_group_data_extended *)
7326 ctsio->kern_data_ptr;
7327 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length);
7328 rtg_ext_ptr->format_type = 0x10;
7329 rtg_ext_ptr->implicit_transition_time = 0;
7330 tpg_desc = &rtg_ext_ptr->groups[0];
7332 rtg_ptr = (struct scsi_target_group_data *)
7333 ctsio->kern_data_ptr;
7334 scsi_ulto4b(total_len - 4, rtg_ptr->length);
7335 tpg_desc = &rtg_ptr->groups[0];
7338 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS;
7339 mtx_lock(&softc->ctl_lock);
7340 for (g = 0; g < num_target_port_groups; g++) {
7342 tpg_desc->pref_state = TPG_PRIMARY |
7343 TPG_ASYMMETRIC_ACCESS_OPTIMIZED;
7345 tpg_desc->pref_state =
7346 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED;
7347 tpg_desc->support = TPG_AO_SUP;
7349 tpg_desc->support |= TPG_AN_SUP;
7350 scsi_ulto2b(g + 1, tpg_desc->target_port_group);
7351 tpg_desc->status = TPG_IMPLICIT;
7353 STAILQ_FOREACH(port, &softc->port_list, links) {
7354 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0)
7356 if (ctl_map_lun_back(port->targ_port, lun->lun) >=
7359 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS;
7360 scsi_ulto2b(p, tpg_desc->descriptors[pc].
7361 relative_target_port_identifier);
7364 tpg_desc->target_port_count = pc;
7365 tpg_desc = (struct scsi_target_port_group_descriptor *)
7366 &tpg_desc->descriptors[pc];
7368 mtx_unlock(&softc->ctl_lock);
7370 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7371 ctsio->be_move_done = ctl_config_move_done;
7373 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n",
7374 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1],
7375 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3],
7376 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5],
7377 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7]));
7379 ctl_datamove((union ctl_io *)ctsio);
7384 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio)
7386 struct ctl_lun *lun;
7387 struct scsi_report_supported_opcodes *cdb;
7388 const struct ctl_cmd_entry *entry, *sentry;
7389 struct scsi_report_supported_opcodes_all *all;
7390 struct scsi_report_supported_opcodes_descr *descr;
7391 struct scsi_report_supported_opcodes_one *one;
7393 int alloc_len, total_len;
7394 int opcode, service_action, i, j, num;
7396 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n"));
7398 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb;
7399 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7401 retval = CTL_RETVAL_COMPLETE;
7403 opcode = cdb->requested_opcode;
7404 service_action = scsi_2btoul(cdb->requested_service_action);
7405 switch (cdb->options & RSO_OPTIONS_MASK) {
7406 case RSO_OPTIONS_ALL:
7408 for (i = 0; i < 256; i++) {
7409 entry = &ctl_cmd_table[i];
7410 if (entry->flags & CTL_CMD_FLAG_SA5) {
7411 for (j = 0; j < 32; j++) {
7412 sentry = &((const struct ctl_cmd_entry *)
7414 if (ctl_cmd_applicable(
7415 lun->be_lun->lun_type, sentry))
7419 if (ctl_cmd_applicable(lun->be_lun->lun_type,
7424 total_len = sizeof(struct scsi_report_supported_opcodes_all) +
7425 num * sizeof(struct scsi_report_supported_opcodes_descr);
7427 case RSO_OPTIONS_OC:
7428 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) {
7429 ctl_set_invalid_field(/*ctsio*/ ctsio,
7435 ctl_done((union ctl_io *)ctsio);
7436 return (CTL_RETVAL_COMPLETE);
7438 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32;
7440 case RSO_OPTIONS_OC_SA:
7441 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 ||
7442 service_action >= 32) {
7443 ctl_set_invalid_field(/*ctsio*/ ctsio,
7449 ctl_done((union ctl_io *)ctsio);
7450 return (CTL_RETVAL_COMPLETE);
7452 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32;
7455 ctl_set_invalid_field(/*ctsio*/ ctsio,
7461 ctl_done((union ctl_io *)ctsio);
7462 return (CTL_RETVAL_COMPLETE);
7465 alloc_len = scsi_4btoul(cdb->length);
7467 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
7469 ctsio->kern_sg_entries = 0;
7471 if (total_len < alloc_len) {
7472 ctsio->residual = alloc_len - total_len;
7473 ctsio->kern_data_len = total_len;
7474 ctsio->kern_total_len = total_len;
7476 ctsio->residual = 0;
7477 ctsio->kern_data_len = alloc_len;
7478 ctsio->kern_total_len = alloc_len;
7480 ctsio->kern_data_resid = 0;
7481 ctsio->kern_rel_offset = 0;
7483 switch (cdb->options & RSO_OPTIONS_MASK) {
7484 case RSO_OPTIONS_ALL:
7485 all = (struct scsi_report_supported_opcodes_all *)
7486 ctsio->kern_data_ptr;
7488 for (i = 0; i < 256; i++) {
7489 entry = &ctl_cmd_table[i];
7490 if (entry->flags & CTL_CMD_FLAG_SA5) {
7491 for (j = 0; j < 32; j++) {
7492 sentry = &((const struct ctl_cmd_entry *)
7494 if (!ctl_cmd_applicable(
7495 lun->be_lun->lun_type, sentry))
7497 descr = &all->descr[num++];
7499 scsi_ulto2b(j, descr->service_action);
7500 descr->flags = RSO_SERVACTV;
7501 scsi_ulto2b(sentry->length,
7505 if (!ctl_cmd_applicable(lun->be_lun->lun_type,
7508 descr = &all->descr[num++];
7510 scsi_ulto2b(0, descr->service_action);
7512 scsi_ulto2b(entry->length, descr->cdb_length);
7516 num * sizeof(struct scsi_report_supported_opcodes_descr),
7519 case RSO_OPTIONS_OC:
7520 one = (struct scsi_report_supported_opcodes_one *)
7521 ctsio->kern_data_ptr;
7522 entry = &ctl_cmd_table[opcode];
7524 case RSO_OPTIONS_OC_SA:
7525 one = (struct scsi_report_supported_opcodes_one *)
7526 ctsio->kern_data_ptr;
7527 entry = &ctl_cmd_table[opcode];
7528 entry = &((const struct ctl_cmd_entry *)
7529 entry->execute)[service_action];
7531 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) {
7533 scsi_ulto2b(entry->length, one->cdb_length);
7534 one->cdb_usage[0] = opcode;
7535 memcpy(&one->cdb_usage[1], entry->usage,
7542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7543 ctsio->be_move_done = ctl_config_move_done;
7545 ctl_datamove((union ctl_io *)ctsio);
7550 ctl_report_supported_tmf(struct ctl_scsiio *ctsio)
7552 struct ctl_lun *lun;
7553 struct scsi_report_supported_tmf *cdb;
7554 struct scsi_report_supported_tmf_data *data;
7556 int alloc_len, total_len;
7558 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n"));
7560 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb;
7561 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7563 retval = CTL_RETVAL_COMPLETE;
7565 total_len = sizeof(struct scsi_report_supported_tmf_data);
7566 alloc_len = scsi_4btoul(cdb->length);
7568 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
7570 ctsio->kern_sg_entries = 0;
7572 if (total_len < alloc_len) {
7573 ctsio->residual = alloc_len - total_len;
7574 ctsio->kern_data_len = total_len;
7575 ctsio->kern_total_len = total_len;
7577 ctsio->residual = 0;
7578 ctsio->kern_data_len = alloc_len;
7579 ctsio->kern_total_len = alloc_len;
7581 ctsio->kern_data_resid = 0;
7582 ctsio->kern_rel_offset = 0;
7584 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr;
7585 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS;
7586 data->byte2 |= RST_ITNRS;
7588 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7589 ctsio->be_move_done = ctl_config_move_done;
7591 ctl_datamove((union ctl_io *)ctsio);
7596 ctl_report_timestamp(struct ctl_scsiio *ctsio)
7598 struct ctl_lun *lun;
7599 struct scsi_report_timestamp *cdb;
7600 struct scsi_report_timestamp_data *data;
7604 int alloc_len, total_len;
7606 CTL_DEBUG_PRINT(("ctl_report_timestamp\n"));
7608 cdb = (struct scsi_report_timestamp *)ctsio->cdb;
7609 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7611 retval = CTL_RETVAL_COMPLETE;
7613 total_len = sizeof(struct scsi_report_timestamp_data);
7614 alloc_len = scsi_4btoul(cdb->length);
7616 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
7618 ctsio->kern_sg_entries = 0;
7620 if (total_len < alloc_len) {
7621 ctsio->residual = alloc_len - total_len;
7622 ctsio->kern_data_len = total_len;
7623 ctsio->kern_total_len = total_len;
7625 ctsio->residual = 0;
7626 ctsio->kern_data_len = alloc_len;
7627 ctsio->kern_total_len = alloc_len;
7629 ctsio->kern_data_resid = 0;
7630 ctsio->kern_rel_offset = 0;
7632 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr;
7633 scsi_ulto2b(sizeof(*data) - 2, data->length);
7634 data->origin = RTS_ORIG_OUTSIDE;
7636 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000;
7637 scsi_ulto4b(timestamp >> 16, data->timestamp);
7638 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]);
7640 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7641 ctsio->be_move_done = ctl_config_move_done;
7643 ctl_datamove((union ctl_io *)ctsio);
7648 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio)
7650 struct scsi_per_res_in *cdb;
7651 int alloc_len, total_len = 0;
7652 /* struct scsi_per_res_in_rsrv in_data; */
7653 struct ctl_lun *lun;
7654 struct ctl_softc *softc;
7656 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n"));
7658 softc = control_softc;
7660 cdb = (struct scsi_per_res_in *)ctsio->cdb;
7662 alloc_len = scsi_2btoul(cdb->length);
7664 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
7667 mtx_lock(&lun->lun_lock);
7668 switch (cdb->action) {
7669 case SPRI_RK: /* read keys */
7670 total_len = sizeof(struct scsi_per_res_in_keys) +
7672 sizeof(struct scsi_per_res_key);
7674 case SPRI_RR: /* read reservation */
7675 if (lun->flags & CTL_LUN_PR_RESERVED)
7676 total_len = sizeof(struct scsi_per_res_in_rsrv);
7678 total_len = sizeof(struct scsi_per_res_in_header);
7680 case SPRI_RC: /* report capabilities */
7681 total_len = sizeof(struct scsi_per_res_cap);
7683 case SPRI_RS: /* read full status */
7684 total_len = sizeof(struct scsi_per_res_in_header) +
7685 (sizeof(struct scsi_per_res_in_full_desc) + 256) *
7689 panic("Invalid PR type %x", cdb->action);
7691 mtx_unlock(&lun->lun_lock);
7693 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO);
7695 if (total_len < alloc_len) {
7696 ctsio->residual = alloc_len - total_len;
7697 ctsio->kern_data_len = total_len;
7698 ctsio->kern_total_len = total_len;
7700 ctsio->residual = 0;
7701 ctsio->kern_data_len = alloc_len;
7702 ctsio->kern_total_len = alloc_len;
7705 ctsio->kern_data_resid = 0;
7706 ctsio->kern_rel_offset = 0;
7707 ctsio->kern_sg_entries = 0;
7709 mtx_lock(&lun->lun_lock);
7710 switch (cdb->action) {
7711 case SPRI_RK: { // read keys
7712 struct scsi_per_res_in_keys *res_keys;
7715 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr;
7718 * We had to drop the lock to allocate our buffer, which
7719 * leaves time for someone to come in with another
7720 * persistent reservation. (That is unlikely, though,
7721 * since this should be the only persistent reservation
7722 * command active right now.)
7724 if (total_len != (sizeof(struct scsi_per_res_in_keys) +
7725 (lun->pr_key_count *
7726 sizeof(struct scsi_per_res_key)))){
7727 mtx_unlock(&lun->lun_lock);
7728 free(ctsio->kern_data_ptr, M_CTL);
7729 printf("%s: reservation length changed, retrying\n",
7734 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation);
7736 scsi_ulto4b(sizeof(struct scsi_per_res_key) *
7737 lun->pr_key_count, res_keys->header.length);
7739 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) {
7740 if (!lun->per_res[i].registered)
7744 * We used lun->pr_key_count to calculate the
7745 * size to allocate. If it turns out the number of
7746 * initiators with the registered flag set is
7747 * larger than that (i.e. they haven't been kept in
7748 * sync), we've got a problem.
7750 if (key_count >= lun->pr_key_count) {
7752 csevent_log(CSC_CTL | CSC_SHELF_SW |
7754 csevent_LogType_Fault,
7755 csevent_AlertLevel_Yellow,
7756 csevent_FRU_ShelfController,
7757 csevent_FRU_Firmware,
7758 csevent_FRU_Unknown,
7759 "registered keys %d >= key "
7760 "count %d", key_count,
7766 memcpy(res_keys->keys[key_count].key,
7767 lun->per_res[i].res_key.key,
7768 ctl_min(sizeof(res_keys->keys[key_count].key),
7769 sizeof(lun->per_res[i].res_key)));
7774 case SPRI_RR: { // read reservation
7775 struct scsi_per_res_in_rsrv *res;
7776 int tmp_len, header_only;
7778 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr;
7780 scsi_ulto4b(lun->PRGeneration, res->header.generation);
7782 if (lun->flags & CTL_LUN_PR_RESERVED)
7784 tmp_len = sizeof(struct scsi_per_res_in_rsrv);
7785 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data),
7786 res->header.length);
7789 tmp_len = sizeof(struct scsi_per_res_in_header);
7790 scsi_ulto4b(0, res->header.length);
7795 * We had to drop the lock to allocate our buffer, which
7796 * leaves time for someone to come in with another
7797 * persistent reservation. (That is unlikely, though,
7798 * since this should be the only persistent reservation
7799 * command active right now.)
7801 if (tmp_len != total_len) {
7802 mtx_unlock(&lun->lun_lock);
7803 free(ctsio->kern_data_ptr, M_CTL);
7804 printf("%s: reservation status changed, retrying\n",
7810 * No reservation held, so we're done.
7812 if (header_only != 0)
7816 * If the registration is an All Registrants type, the key
7817 * is 0, since it doesn't really matter.
7819 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) {
7820 memcpy(res->data.reservation,
7821 &lun->per_res[lun->pr_res_idx].res_key,
7822 sizeof(struct scsi_per_res_key));
7824 res->data.scopetype = lun->res_type;
7827 case SPRI_RC: //report capabilities
7829 struct scsi_per_res_cap *res_cap;
7832 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr;
7833 scsi_ulto2b(sizeof(*res_cap), res_cap->length);
7834 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3;
7835 type_mask = SPRI_TM_WR_EX_AR |
7841 scsi_ulto2b(type_mask, res_cap->type_mask);
7844 case SPRI_RS: { // read full status
7845 struct scsi_per_res_in_full *res_status;
7846 struct scsi_per_res_in_full_desc *res_desc;
7847 struct ctl_port *port;
7850 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr;
7853 * We had to drop the lock to allocate our buffer, which
7854 * leaves time for someone to come in with another
7855 * persistent reservation. (That is unlikely, though,
7856 * since this should be the only persistent reservation
7857 * command active right now.)
7859 if (total_len < (sizeof(struct scsi_per_res_in_header) +
7860 (sizeof(struct scsi_per_res_in_full_desc) + 256) *
7861 lun->pr_key_count)){
7862 mtx_unlock(&lun->lun_lock);
7863 free(ctsio->kern_data_ptr, M_CTL);
7864 printf("%s: reservation length changed, retrying\n",
7869 scsi_ulto4b(lun->PRGeneration, res_status->header.generation);
7871 res_desc = &res_status->desc[0];
7872 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) {
7873 if (!lun->per_res[i].registered)
7876 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key,
7877 sizeof(res_desc->res_key));
7878 if ((lun->flags & CTL_LUN_PR_RESERVED) &&
7879 (lun->pr_res_idx == i ||
7880 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) {
7881 res_desc->flags = SPRI_FULL_R_HOLDER;
7882 res_desc->scopetype = lun->res_type;
7884 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT,
7885 res_desc->rel_trgt_port_id);
7887 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT];
7889 len = ctl_create_iid(port,
7890 i % CTL_MAX_INIT_PER_PORT,
7891 res_desc->transport_id);
7892 scsi_ulto4b(len, res_desc->additional_length);
7893 res_desc = (struct scsi_per_res_in_full_desc *)
7894 &res_desc->transport_id[len];
7896 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0],
7897 res_status->header.length);
7902 * This is a bug, because we just checked for this above,
7903 * and should have returned an error.
7905 panic("Invalid PR type %x", cdb->action);
7906 break; /* NOTREACHED */
7908 mtx_unlock(&lun->lun_lock);
7910 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
7911 ctsio->be_move_done = ctl_config_move_done;
7913 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n",
7914 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1],
7915 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3],
7916 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5],
7917 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7]));
7919 ctl_datamove((union ctl_io *)ctsio);
7921 return (CTL_RETVAL_COMPLETE);
7925 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if
7929 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key,
7930 uint64_t sa_res_key, uint8_t type, uint32_t residx,
7931 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb,
7932 struct scsi_per_res_out_parms* param)
7934 union ctl_ha_msg persis_io;
7940 mtx_lock(&lun->lun_lock);
7941 if (sa_res_key == 0) {
7942 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) {
7943 /* validate scope and type */
7944 if ((cdb->scope_type & SPR_SCOPE_MASK) !=
7946 mtx_unlock(&lun->lun_lock);
7947 ctl_set_invalid_field(/*ctsio*/ ctsio,
7953 ctl_done((union ctl_io *)ctsio);
7957 if (type>8 || type==2 || type==4 || type==0) {
7958 mtx_unlock(&lun->lun_lock);
7959 ctl_set_invalid_field(/*ctsio*/ ctsio,
7965 ctl_done((union ctl_io *)ctsio);
7969 /* temporarily unregister this nexus */
7970 lun->per_res[residx].registered = 0;
7973 * Unregister everybody else and build UA for
7976 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) {
7977 if (lun->per_res[i].registered == 0)
7981 && i <CTL_MAX_INITIATORS)
7982 lun->pending_sense[i].ua_pending |=
7984 else if (persis_offset
7985 && i >= persis_offset)
7986 lun->pending_sense[i-persis_offset
7989 lun->per_res[i].registered = 0;
7990 memset(&lun->per_res[i].res_key, 0,
7991 sizeof(struct scsi_per_res_key));
7993 lun->per_res[residx].registered = 1;
7994 lun->pr_key_count = 1;
7995 lun->res_type = type;
7996 if (lun->res_type != SPR_TYPE_WR_EX_AR
7997 && lun->res_type != SPR_TYPE_EX_AC_AR)
7998 lun->pr_res_idx = residx;
8000 /* send msg to other side */
8001 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8002 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8003 persis_io.pr.pr_info.action = CTL_PR_PREEMPT;
8004 persis_io.pr.pr_info.residx = lun->pr_res_idx;
8005 persis_io.pr.pr_info.res_type = type;
8006 memcpy(persis_io.pr.pr_info.sa_res_key,
8007 param->serv_act_res_key,
8008 sizeof(param->serv_act_res_key));
8009 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8010 &persis_io, sizeof(persis_io), 0)) >
8011 CTL_HA_STATUS_SUCCESS) {
8012 printf("CTL:Persis Out error returned "
8013 "from ctl_ha_msg_send %d\n",
8017 /* not all registrants */
8018 mtx_unlock(&lun->lun_lock);
8019 free(ctsio->kern_data_ptr, M_CTL);
8020 ctl_set_invalid_field(ctsio,
8026 ctl_done((union ctl_io *)ctsio);
8029 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS
8030 || !(lun->flags & CTL_LUN_PR_RESERVED)) {
8033 if (res_key == sa_res_key) {
8036 * The spec implies this is not good but doesn't
8037 * say what to do. There are two choices either
8038 * generate a res conflict or check condition
8039 * with illegal field in parameter data. Since
8040 * that is what is done when the sa_res_key is
8041 * zero I'll take that approach since this has
8042 * to do with the sa_res_key.
8044 mtx_unlock(&lun->lun_lock);
8045 free(ctsio->kern_data_ptr, M_CTL);
8046 ctl_set_invalid_field(ctsio,
8052 ctl_done((union ctl_io *)ctsio);
8056 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8057 if (lun->per_res[i].registered
8058 && memcmp(param->serv_act_res_key,
8059 lun->per_res[i].res_key.key,
8060 sizeof(struct scsi_per_res_key)) != 0)
8064 lun->per_res[i].registered = 0;
8065 memset(&lun->per_res[i].res_key, 0,
8066 sizeof(struct scsi_per_res_key));
8067 lun->pr_key_count--;
8070 && i < CTL_MAX_INITIATORS)
8071 lun->pending_sense[i].ua_pending |=
8073 else if (persis_offset
8074 && i >= persis_offset)
8075 lun->pending_sense[i-persis_offset].ua_pending|=
8079 mtx_unlock(&lun->lun_lock);
8080 free(ctsio->kern_data_ptr, M_CTL);
8081 ctl_set_reservation_conflict(ctsio);
8082 ctl_done((union ctl_io *)ctsio);
8083 return (CTL_RETVAL_COMPLETE);
8085 /* send msg to other side */
8086 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8087 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8088 persis_io.pr.pr_info.action = CTL_PR_PREEMPT;
8089 persis_io.pr.pr_info.residx = lun->pr_res_idx;
8090 persis_io.pr.pr_info.res_type = type;
8091 memcpy(persis_io.pr.pr_info.sa_res_key,
8092 param->serv_act_res_key,
8093 sizeof(param->serv_act_res_key));
8094 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8095 &persis_io, sizeof(persis_io), 0)) >
8096 CTL_HA_STATUS_SUCCESS) {
8097 printf("CTL:Persis Out error returned from "
8098 "ctl_ha_msg_send %d\n", isc_retval);
8101 /* Reserved but not all registrants */
8102 /* sa_res_key is res holder */
8103 if (memcmp(param->serv_act_res_key,
8104 lun->per_res[lun->pr_res_idx].res_key.key,
8105 sizeof(struct scsi_per_res_key)) == 0) {
8106 /* validate scope and type */
8107 if ((cdb->scope_type & SPR_SCOPE_MASK) !=
8109 mtx_unlock(&lun->lun_lock);
8110 ctl_set_invalid_field(/*ctsio*/ ctsio,
8116 ctl_done((union ctl_io *)ctsio);
8120 if (type>8 || type==2 || type==4 || type==0) {
8121 mtx_unlock(&lun->lun_lock);
8122 ctl_set_invalid_field(/*ctsio*/ ctsio,
8128 ctl_done((union ctl_io *)ctsio);
8134 * if sa_res_key != res_key remove all
8135 * registrants w/sa_res_key and generate UA
8136 * for these registrants(Registrations
8137 * Preempted) if it wasn't an exclusive
8138 * reservation generate UA(Reservations
8139 * Preempted) for all other registered nexuses
8140 * if the type has changed. Establish the new
8141 * reservation and holder. If res_key and
8142 * sa_res_key are the same do the above
8143 * except don't unregister the res holder.
8147 * Temporarily unregister so it won't get
8148 * removed or UA generated
8150 lun->per_res[residx].registered = 0;
8151 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8152 if (lun->per_res[i].registered == 0)
8155 if (memcmp(param->serv_act_res_key,
8156 lun->per_res[i].res_key.key,
8157 sizeof(struct scsi_per_res_key)) == 0) {
8158 lun->per_res[i].registered = 0;
8159 memset(&lun->per_res[i].res_key,
8161 sizeof(struct scsi_per_res_key));
8162 lun->pr_key_count--;
8165 && i < CTL_MAX_INITIATORS)
8166 lun->pending_sense[i
8169 else if (persis_offset
8170 && i >= persis_offset)
8172 i-persis_offset].ua_pending |=
8174 } else if (type != lun->res_type
8175 && (lun->res_type == SPR_TYPE_WR_EX_RO
8176 || lun->res_type ==SPR_TYPE_EX_AC_RO)){
8178 && i < CTL_MAX_INITIATORS)
8179 lun->pending_sense[i
8182 else if (persis_offset
8183 && i >= persis_offset)
8190 lun->per_res[residx].registered = 1;
8191 lun->res_type = type;
8192 if (lun->res_type != SPR_TYPE_WR_EX_AR
8193 && lun->res_type != SPR_TYPE_EX_AC_AR)
8194 lun->pr_res_idx = residx;
8197 CTL_PR_ALL_REGISTRANTS;
8199 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8200 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8201 persis_io.pr.pr_info.action = CTL_PR_PREEMPT;
8202 persis_io.pr.pr_info.residx = lun->pr_res_idx;
8203 persis_io.pr.pr_info.res_type = type;
8204 memcpy(persis_io.pr.pr_info.sa_res_key,
8205 param->serv_act_res_key,
8206 sizeof(param->serv_act_res_key));
8207 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8208 &persis_io, sizeof(persis_io), 0)) >
8209 CTL_HA_STATUS_SUCCESS) {
8210 printf("CTL:Persis Out error returned "
8211 "from ctl_ha_msg_send %d\n",
8216 * sa_res_key is not the res holder just
8217 * remove registrants
8221 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8222 if (memcmp(param->serv_act_res_key,
8223 lun->per_res[i].res_key.key,
8224 sizeof(struct scsi_per_res_key)) != 0)
8228 lun->per_res[i].registered = 0;
8229 memset(&lun->per_res[i].res_key, 0,
8230 sizeof(struct scsi_per_res_key));
8231 lun->pr_key_count--;
8234 && i < CTL_MAX_INITIATORS)
8235 lun->pending_sense[i].ua_pending |=
8237 else if (persis_offset
8238 && i >= persis_offset)
8240 i-persis_offset].ua_pending |=
8245 mtx_unlock(&lun->lun_lock);
8246 free(ctsio->kern_data_ptr, M_CTL);
8247 ctl_set_reservation_conflict(ctsio);
8248 ctl_done((union ctl_io *)ctsio);
8251 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8252 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8253 persis_io.pr.pr_info.action = CTL_PR_PREEMPT;
8254 persis_io.pr.pr_info.residx = lun->pr_res_idx;
8255 persis_io.pr.pr_info.res_type = type;
8256 memcpy(persis_io.pr.pr_info.sa_res_key,
8257 param->serv_act_res_key,
8258 sizeof(param->serv_act_res_key));
8259 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8260 &persis_io, sizeof(persis_io), 0)) >
8261 CTL_HA_STATUS_SUCCESS) {
8262 printf("CTL:Persis Out error returned "
8263 "from ctl_ha_msg_send %d\n",
8269 lun->PRGeneration++;
8270 mtx_unlock(&lun->lun_lock);
8276 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg)
8280 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS
8281 || lun->pr_res_idx == CTL_PR_NO_RESERVATION
8282 || memcmp(&lun->per_res[lun->pr_res_idx].res_key,
8283 msg->pr.pr_info.sa_res_key,
8284 sizeof(struct scsi_per_res_key)) != 0) {
8285 uint64_t sa_res_key;
8286 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key);
8288 if (sa_res_key == 0) {
8289 /* temporarily unregister this nexus */
8290 lun->per_res[msg->pr.pr_info.residx].registered = 0;
8293 * Unregister everybody else and build UA for
8296 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8297 if (lun->per_res[i].registered == 0)
8301 && i < CTL_MAX_INITIATORS)
8302 lun->pending_sense[i].ua_pending |=
8304 else if (persis_offset && i >= persis_offset)
8305 lun->pending_sense[i -
8306 persis_offset].ua_pending |=
8308 lun->per_res[i].registered = 0;
8309 memset(&lun->per_res[i].res_key, 0,
8310 sizeof(struct scsi_per_res_key));
8313 lun->per_res[msg->pr.pr_info.residx].registered = 1;
8314 lun->pr_key_count = 1;
8315 lun->res_type = msg->pr.pr_info.res_type;
8316 if (lun->res_type != SPR_TYPE_WR_EX_AR
8317 && lun->res_type != SPR_TYPE_EX_AC_AR)
8318 lun->pr_res_idx = msg->pr.pr_info.residx;
8320 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8321 if (memcmp(msg->pr.pr_info.sa_res_key,
8322 lun->per_res[i].res_key.key,
8323 sizeof(struct scsi_per_res_key)) != 0)
8326 lun->per_res[i].registered = 0;
8327 memset(&lun->per_res[i].res_key, 0,
8328 sizeof(struct scsi_per_res_key));
8329 lun->pr_key_count--;
8332 && i < persis_offset)
8333 lun->pending_sense[i].ua_pending |=
8335 else if (persis_offset
8336 && i >= persis_offset)
8337 lun->pending_sense[i -
8338 persis_offset].ua_pending |=
8344 * Temporarily unregister so it won't get removed
8347 lun->per_res[msg->pr.pr_info.residx].registered = 0;
8348 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8349 if (lun->per_res[i].registered == 0)
8352 if (memcmp(msg->pr.pr_info.sa_res_key,
8353 lun->per_res[i].res_key.key,
8354 sizeof(struct scsi_per_res_key)) == 0) {
8355 lun->per_res[i].registered = 0;
8356 memset(&lun->per_res[i].res_key, 0,
8357 sizeof(struct scsi_per_res_key));
8358 lun->pr_key_count--;
8360 && i < CTL_MAX_INITIATORS)
8361 lun->pending_sense[i].ua_pending |=
8363 else if (persis_offset
8364 && i >= persis_offset)
8365 lun->pending_sense[i -
8366 persis_offset].ua_pending |=
8368 } else if (msg->pr.pr_info.res_type != lun->res_type
8369 && (lun->res_type == SPR_TYPE_WR_EX_RO
8370 || lun->res_type == SPR_TYPE_EX_AC_RO)) {
8372 && i < persis_offset)
8373 lun->pending_sense[i
8376 else if (persis_offset
8377 && i >= persis_offset)
8378 lun->pending_sense[i -
8379 persis_offset].ua_pending |=
8383 lun->per_res[msg->pr.pr_info.residx].registered = 1;
8384 lun->res_type = msg->pr.pr_info.res_type;
8385 if (lun->res_type != SPR_TYPE_WR_EX_AR
8386 && lun->res_type != SPR_TYPE_EX_AC_AR)
8387 lun->pr_res_idx = msg->pr.pr_info.residx;
8389 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS;
8391 lun->PRGeneration++;
8397 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio)
8401 u_int32_t param_len;
8402 struct scsi_per_res_out *cdb;
8403 struct ctl_lun *lun;
8404 struct scsi_per_res_out_parms* param;
8405 struct ctl_softc *softc;
8407 uint64_t res_key, sa_res_key;
8409 union ctl_ha_msg persis_io;
8412 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n"));
8414 retval = CTL_RETVAL_COMPLETE;
8416 softc = control_softc;
8418 cdb = (struct scsi_per_res_out *)ctsio->cdb;
8419 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
8422 * We only support whole-LUN scope. The scope & type are ignored for
8423 * register, register and ignore existing key and clear.
8424 * We sometimes ignore scope and type on preempts too!!
8425 * Verify reservation type here as well.
8427 type = cdb->scope_type & SPR_TYPE_MASK;
8428 if ((cdb->action == SPRO_RESERVE)
8429 || (cdb->action == SPRO_RELEASE)) {
8430 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) {
8431 ctl_set_invalid_field(/*ctsio*/ ctsio,
8437 ctl_done((union ctl_io *)ctsio);
8438 return (CTL_RETVAL_COMPLETE);
8441 if (type>8 || type==2 || type==4 || type==0) {
8442 ctl_set_invalid_field(/*ctsio*/ ctsio,
8448 ctl_done((union ctl_io *)ctsio);
8449 return (CTL_RETVAL_COMPLETE);
8453 param_len = scsi_4btoul(cdb->length);
8455 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) {
8456 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK);
8457 ctsio->kern_data_len = param_len;
8458 ctsio->kern_total_len = param_len;
8459 ctsio->kern_data_resid = 0;
8460 ctsio->kern_rel_offset = 0;
8461 ctsio->kern_sg_entries = 0;
8462 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
8463 ctsio->be_move_done = ctl_config_move_done;
8464 ctl_datamove((union ctl_io *)ctsio);
8466 return (CTL_RETVAL_COMPLETE);
8469 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr;
8471 residx = ctl_get_resindex(&ctsio->io_hdr.nexus);
8472 res_key = scsi_8btou64(param->res_key.key);
8473 sa_res_key = scsi_8btou64(param->serv_act_res_key);
8476 * Validate the reservation key here except for SPRO_REG_IGNO
8477 * This must be done for all other service actions
8479 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) {
8480 mtx_lock(&lun->lun_lock);
8481 if (lun->per_res[residx].registered) {
8482 if (memcmp(param->res_key.key,
8483 lun->per_res[residx].res_key.key,
8484 ctl_min(sizeof(param->res_key),
8485 sizeof(lun->per_res[residx].res_key))) != 0) {
8487 * The current key passed in doesn't match
8488 * the one the initiator previously
8491 mtx_unlock(&lun->lun_lock);
8492 free(ctsio->kern_data_ptr, M_CTL);
8493 ctl_set_reservation_conflict(ctsio);
8494 ctl_done((union ctl_io *)ctsio);
8495 return (CTL_RETVAL_COMPLETE);
8497 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) {
8499 * We are not registered
8501 mtx_unlock(&lun->lun_lock);
8502 free(ctsio->kern_data_ptr, M_CTL);
8503 ctl_set_reservation_conflict(ctsio);
8504 ctl_done((union ctl_io *)ctsio);
8505 return (CTL_RETVAL_COMPLETE);
8506 } else if (res_key != 0) {
8508 * We are not registered and trying to register but
8509 * the register key isn't zero.
8511 mtx_unlock(&lun->lun_lock);
8512 free(ctsio->kern_data_ptr, M_CTL);
8513 ctl_set_reservation_conflict(ctsio);
8514 ctl_done((union ctl_io *)ctsio);
8515 return (CTL_RETVAL_COMPLETE);
8517 mtx_unlock(&lun->lun_lock);
8520 switch (cdb->action & SPRO_ACTION_MASK) {
8522 case SPRO_REG_IGNO: {
8525 printf("Registration received\n");
8529 * We don't support any of these options, as we report in
8530 * the read capabilities request (see
8531 * ctl_persistent_reserve_in(), above).
8533 if ((param->flags & SPR_SPEC_I_PT)
8534 || (param->flags & SPR_ALL_TG_PT)
8535 || (param->flags & SPR_APTPL)) {
8538 if (param->flags & SPR_APTPL)
8540 else if (param->flags & SPR_ALL_TG_PT)
8542 else /* SPR_SPEC_I_PT */
8545 free(ctsio->kern_data_ptr, M_CTL);
8546 ctl_set_invalid_field(ctsio,
8552 ctl_done((union ctl_io *)ctsio);
8553 return (CTL_RETVAL_COMPLETE);
8556 mtx_lock(&lun->lun_lock);
8559 * The initiator wants to clear the
8562 if (sa_res_key == 0) {
8564 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER)
8565 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO
8566 && !lun->per_res[residx].registered)) {
8567 mtx_unlock(&lun->lun_lock);
8571 lun->per_res[residx].registered = 0;
8572 memset(&lun->per_res[residx].res_key,
8573 0, sizeof(lun->per_res[residx].res_key));
8574 lun->pr_key_count--;
8576 if (residx == lun->pr_res_idx) {
8577 lun->flags &= ~CTL_LUN_PR_RESERVED;
8578 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8580 if ((lun->res_type == SPR_TYPE_WR_EX_RO
8581 || lun->res_type == SPR_TYPE_EX_AC_RO)
8582 && lun->pr_key_count) {
8584 * If the reservation is a registrants
8585 * only type we need to generate a UA
8586 * for other registered inits. The
8587 * sense code should be RESERVATIONS
8591 for (i = 0; i < CTL_MAX_INITIATORS;i++){
8593 i+persis_offset].registered
8596 lun->pending_sense[i
8602 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) {
8603 if (lun->pr_key_count==0) {
8604 lun->flags &= ~CTL_LUN_PR_RESERVED;
8606 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8609 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8610 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8611 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY;
8612 persis_io.pr.pr_info.residx = residx;
8613 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8614 &persis_io, sizeof(persis_io), 0 )) >
8615 CTL_HA_STATUS_SUCCESS) {
8616 printf("CTL:Persis Out error returned from "
8617 "ctl_ha_msg_send %d\n", isc_retval);
8619 } else /* sa_res_key != 0 */ {
8622 * If we aren't registered currently then increment
8623 * the key count and set the registered flag.
8625 if (!lun->per_res[residx].registered) {
8626 lun->pr_key_count++;
8627 lun->per_res[residx].registered = 1;
8630 memcpy(&lun->per_res[residx].res_key,
8631 param->serv_act_res_key,
8632 ctl_min(sizeof(param->serv_act_res_key),
8633 sizeof(lun->per_res[residx].res_key)));
8635 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8636 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8637 persis_io.pr.pr_info.action = CTL_PR_REG_KEY;
8638 persis_io.pr.pr_info.residx = residx;
8639 memcpy(persis_io.pr.pr_info.sa_res_key,
8640 param->serv_act_res_key,
8641 sizeof(param->serv_act_res_key));
8642 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8643 &persis_io, sizeof(persis_io), 0)) >
8644 CTL_HA_STATUS_SUCCESS) {
8645 printf("CTL:Persis Out error returned from "
8646 "ctl_ha_msg_send %d\n", isc_retval);
8649 lun->PRGeneration++;
8650 mtx_unlock(&lun->lun_lock);
8656 printf("Reserve executed type %d\n", type);
8658 mtx_lock(&lun->lun_lock);
8659 if (lun->flags & CTL_LUN_PR_RESERVED) {
8661 * if this isn't the reservation holder and it's
8662 * not a "all registrants" type or if the type is
8663 * different then we have a conflict
8665 if ((lun->pr_res_idx != residx
8666 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS)
8667 || lun->res_type != type) {
8668 mtx_unlock(&lun->lun_lock);
8669 free(ctsio->kern_data_ptr, M_CTL);
8670 ctl_set_reservation_conflict(ctsio);
8671 ctl_done((union ctl_io *)ctsio);
8672 return (CTL_RETVAL_COMPLETE);
8674 mtx_unlock(&lun->lun_lock);
8675 } else /* create a reservation */ {
8677 * If it's not an "all registrants" type record
8678 * reservation holder
8680 if (type != SPR_TYPE_WR_EX_AR
8681 && type != SPR_TYPE_EX_AC_AR)
8682 lun->pr_res_idx = residx; /* Res holder */
8684 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS;
8686 lun->flags |= CTL_LUN_PR_RESERVED;
8687 lun->res_type = type;
8689 mtx_unlock(&lun->lun_lock);
8691 /* send msg to other side */
8692 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8693 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8694 persis_io.pr.pr_info.action = CTL_PR_RESERVE;
8695 persis_io.pr.pr_info.residx = lun->pr_res_idx;
8696 persis_io.pr.pr_info.res_type = type;
8697 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
8698 &persis_io, sizeof(persis_io), 0)) >
8699 CTL_HA_STATUS_SUCCESS) {
8700 printf("CTL:Persis Out error returned from "
8701 "ctl_ha_msg_send %d\n", isc_retval);
8707 mtx_lock(&lun->lun_lock);
8708 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) {
8709 /* No reservation exists return good status */
8710 mtx_unlock(&lun->lun_lock);
8714 * Is this nexus a reservation holder?
8716 if (lun->pr_res_idx != residx
8717 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) {
8719 * not a res holder return good status but
8722 mtx_unlock(&lun->lun_lock);
8726 if (lun->res_type != type) {
8727 mtx_unlock(&lun->lun_lock);
8728 free(ctsio->kern_data_ptr, M_CTL);
8729 ctl_set_illegal_pr_release(ctsio);
8730 ctl_done((union ctl_io *)ctsio);
8731 return (CTL_RETVAL_COMPLETE);
8734 /* okay to release */
8735 lun->flags &= ~CTL_LUN_PR_RESERVED;
8736 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8740 * if this isn't an exclusive access
8741 * res generate UA for all other
8744 if (type != SPR_TYPE_EX_AC
8745 && type != SPR_TYPE_WR_EX) {
8747 * temporarily unregister so we don't generate UA
8749 lun->per_res[residx].registered = 0;
8751 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
8752 if (lun->per_res[i+persis_offset].registered
8755 lun->pending_sense[i].ua_pending |=
8759 lun->per_res[residx].registered = 1;
8761 mtx_unlock(&lun->lun_lock);
8762 /* Send msg to other side */
8763 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8764 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8765 persis_io.pr.pr_info.action = CTL_PR_RELEASE;
8766 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io,
8767 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) {
8768 printf("CTL:Persis Out error returned from "
8769 "ctl_ha_msg_send %d\n", isc_retval);
8774 /* send msg to other side */
8776 mtx_lock(&lun->lun_lock);
8777 lun->flags &= ~CTL_LUN_PR_RESERVED;
8779 lun->pr_key_count = 0;
8780 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8783 memset(&lun->per_res[residx].res_key,
8784 0, sizeof(lun->per_res[residx].res_key));
8785 lun->per_res[residx].registered = 0;
8787 for (i=0; i < 2*CTL_MAX_INITIATORS; i++)
8788 if (lun->per_res[i].registered) {
8789 if (!persis_offset && i < CTL_MAX_INITIATORS)
8790 lun->pending_sense[i].ua_pending |=
8792 else if (persis_offset && i >= persis_offset)
8793 lun->pending_sense[i-persis_offset
8794 ].ua_pending |= CTL_UA_RES_PREEMPT;
8796 memset(&lun->per_res[i].res_key,
8797 0, sizeof(struct scsi_per_res_key));
8798 lun->per_res[i].registered = 0;
8800 lun->PRGeneration++;
8801 mtx_unlock(&lun->lun_lock);
8802 persis_io.hdr.nexus = ctsio->io_hdr.nexus;
8803 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION;
8804 persis_io.pr.pr_info.action = CTL_PR_CLEAR;
8805 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io,
8806 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) {
8807 printf("CTL:Persis Out error returned from "
8808 "ctl_ha_msg_send %d\n", isc_retval);
8812 case SPRO_PREEMPT: {
8815 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type,
8816 residx, ctsio, cdb, param);
8818 return (CTL_RETVAL_COMPLETE);
8822 panic("Invalid PR type %x", cdb->action);
8826 free(ctsio->kern_data_ptr, M_CTL);
8827 ctl_set_success(ctsio);
8828 ctl_done((union ctl_io *)ctsio);
8834 * This routine is for handling a message from the other SC pertaining to
8835 * persistent reserve out. All the error checking will have been done
8836 * so only perorming the action need be done here to keep the two
8840 ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg)
8842 struct ctl_lun *lun;
8843 struct ctl_softc *softc;
8847 softc = control_softc;
8849 targ_lun = msg->hdr.nexus.targ_mapped_lun;
8850 lun = softc->ctl_luns[targ_lun];
8851 mtx_lock(&lun->lun_lock);
8852 switch(msg->pr.pr_info.action) {
8853 case CTL_PR_REG_KEY:
8854 if (!lun->per_res[msg->pr.pr_info.residx].registered) {
8855 lun->per_res[msg->pr.pr_info.residx].registered = 1;
8856 lun->pr_key_count++;
8858 lun->PRGeneration++;
8859 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key,
8860 msg->pr.pr_info.sa_res_key,
8861 sizeof(struct scsi_per_res_key));
8864 case CTL_PR_UNREG_KEY:
8865 lun->per_res[msg->pr.pr_info.residx].registered = 0;
8866 memset(&lun->per_res[msg->pr.pr_info.residx].res_key,
8867 0, sizeof(struct scsi_per_res_key));
8868 lun->pr_key_count--;
8870 /* XXX Need to see if the reservation has been released */
8871 /* if so do we need to generate UA? */
8872 if (msg->pr.pr_info.residx == lun->pr_res_idx) {
8873 lun->flags &= ~CTL_LUN_PR_RESERVED;
8874 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8876 if ((lun->res_type == SPR_TYPE_WR_EX_RO
8877 || lun->res_type == SPR_TYPE_EX_AC_RO)
8878 && lun->pr_key_count) {
8880 * If the reservation is a registrants
8881 * only type we need to generate a UA
8882 * for other registered inits. The
8883 * sense code should be RESERVATIONS
8887 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
8889 persis_offset].registered == 0)
8892 lun->pending_sense[i
8898 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) {
8899 if (lun->pr_key_count==0) {
8900 lun->flags &= ~CTL_LUN_PR_RESERVED;
8902 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8905 lun->PRGeneration++;
8908 case CTL_PR_RESERVE:
8909 lun->flags |= CTL_LUN_PR_RESERVED;
8910 lun->res_type = msg->pr.pr_info.res_type;
8911 lun->pr_res_idx = msg->pr.pr_info.residx;
8915 case CTL_PR_RELEASE:
8917 * if this isn't an exclusive access res generate UA for all
8918 * other registrants.
8920 if (lun->res_type != SPR_TYPE_EX_AC
8921 && lun->res_type != SPR_TYPE_WR_EX) {
8922 for (i = 0; i < CTL_MAX_INITIATORS; i++)
8923 if (lun->per_res[i+persis_offset].registered)
8924 lun->pending_sense[i].ua_pending |=
8928 lun->flags &= ~CTL_LUN_PR_RESERVED;
8929 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8933 case CTL_PR_PREEMPT:
8934 ctl_pro_preempt_other(lun, msg);
8937 lun->flags &= ~CTL_LUN_PR_RESERVED;
8939 lun->pr_key_count = 0;
8940 lun->pr_res_idx = CTL_PR_NO_RESERVATION;
8942 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) {
8943 if (lun->per_res[i].registered == 0)
8946 && i < CTL_MAX_INITIATORS)
8947 lun->pending_sense[i].ua_pending |=
8949 else if (persis_offset
8950 && i >= persis_offset)
8951 lun->pending_sense[i-persis_offset].ua_pending|=
8953 memset(&lun->per_res[i].res_key, 0,
8954 sizeof(struct scsi_per_res_key));
8955 lun->per_res[i].registered = 0;
8957 lun->PRGeneration++;
8961 mtx_unlock(&lun->lun_lock);
8965 ctl_read_write(struct ctl_scsiio *ctsio)
8967 struct ctl_lun *lun;
8968 struct ctl_lba_len_flags *lbalen;
8970 uint32_t num_blocks;
8975 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
8977 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0]));
8982 retval = CTL_RETVAL_COMPLETE;
8984 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10
8985 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16;
8986 if (lun->flags & CTL_LUN_PR_RESERVED && isread) {
8990 * XXX KDM need a lock here.
8992 residx = ctl_get_resindex(&ctsio->io_hdr.nexus);
8993 if ((lun->res_type == SPR_TYPE_EX_AC
8994 && residx != lun->pr_res_idx)
8995 || ((lun->res_type == SPR_TYPE_EX_AC_RO
8996 || lun->res_type == SPR_TYPE_EX_AC_AR)
8997 && !lun->per_res[residx].registered)) {
8998 ctl_set_reservation_conflict(ctsio);
8999 ctl_done((union ctl_io *)ctsio);
9000 return (CTL_RETVAL_COMPLETE);
9004 switch (ctsio->cdb[0]) {
9007 struct scsi_rw_6 *cdb;
9009 cdb = (struct scsi_rw_6 *)ctsio->cdb;
9011 lba = scsi_3btoul(cdb->addr);
9012 /* only 5 bits are valid in the most significant address byte */
9014 num_blocks = cdb->length;
9016 * This is correct according to SBC-2.
9018 if (num_blocks == 0)
9024 struct scsi_rw_10 *cdb;
9026 cdb = (struct scsi_rw_10 *)ctsio->cdb;
9028 if (cdb->byte2 & SRW10_FUA)
9030 if (cdb->byte2 & SRW10_DPO)
9033 lba = scsi_4btoul(cdb->addr);
9034 num_blocks = scsi_2btoul(cdb->length);
9037 case WRITE_VERIFY_10: {
9038 struct scsi_write_verify_10 *cdb;
9040 cdb = (struct scsi_write_verify_10 *)ctsio->cdb;
9043 * XXX KDM we should do actual write verify support at some
9044 * point. This is obviously fake, we're just translating
9045 * things to a write. So we don't even bother checking the
9046 * BYTCHK field, since we don't do any verification. If
9047 * the user asks for it, we'll just pretend we did it.
9049 if (cdb->byte2 & SWV_DPO)
9052 lba = scsi_4btoul(cdb->addr);
9053 num_blocks = scsi_2btoul(cdb->length);
9058 struct scsi_rw_12 *cdb;
9060 cdb = (struct scsi_rw_12 *)ctsio->cdb;
9062 if (cdb->byte2 & SRW12_FUA)
9064 if (cdb->byte2 & SRW12_DPO)
9066 lba = scsi_4btoul(cdb->addr);
9067 num_blocks = scsi_4btoul(cdb->length);
9070 case WRITE_VERIFY_12: {
9071 struct scsi_write_verify_12 *cdb;
9073 cdb = (struct scsi_write_verify_12 *)ctsio->cdb;
9075 if (cdb->byte2 & SWV_DPO)
9078 lba = scsi_4btoul(cdb->addr);
9079 num_blocks = scsi_4btoul(cdb->length);
9085 struct scsi_rw_16 *cdb;
9087 cdb = (struct scsi_rw_16 *)ctsio->cdb;
9089 if (cdb->byte2 & SRW12_FUA)
9091 if (cdb->byte2 & SRW12_DPO)
9094 lba = scsi_8btou64(cdb->addr);
9095 num_blocks = scsi_4btoul(cdb->length);
9098 case WRITE_VERIFY_16: {
9099 struct scsi_write_verify_16 *cdb;
9101 cdb = (struct scsi_write_verify_16 *)ctsio->cdb;
9103 if (cdb->byte2 & SWV_DPO)
9106 lba = scsi_8btou64(cdb->addr);
9107 num_blocks = scsi_4btoul(cdb->length);
9112 * We got a command we don't support. This shouldn't
9113 * happen, commands should be filtered out above us.
9115 ctl_set_invalid_opcode(ctsio);
9116 ctl_done((union ctl_io *)ctsio);
9118 return (CTL_RETVAL_COMPLETE);
9119 break; /* NOTREACHED */
9123 * XXX KDM what do we do with the DPO and FUA bits? FUA might be
9124 * interesting for us, but if RAIDCore is in write-back mode,
9125 * getting it to do write-through for a particular transaction may
9130 * The first check is to make sure we're in bounds, the second
9131 * check is to catch wrap-around problems. If the lba + num blocks
9132 * is less than the lba, then we've wrapped around and the block
9133 * range is invalid anyway.
9135 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1))
9136 || ((lba + num_blocks) < lba)) {
9137 ctl_set_lba_out_of_range(ctsio);
9138 ctl_done((union ctl_io *)ctsio);
9139 return (CTL_RETVAL_COMPLETE);
9143 * According to SBC-3, a transfer length of 0 is not an error.
9144 * Note that this cannot happen with WRITE(6) or READ(6), since 0
9145 * translates to 256 blocks for those commands.
9147 if (num_blocks == 0) {
9148 ctl_set_success(ctsio);
9149 ctl_done((union ctl_io *)ctsio);
9150 return (CTL_RETVAL_COMPLETE);
9153 lbalen = (struct ctl_lba_len_flags *)
9154 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN];
9156 lbalen->len = num_blocks;
9157 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE;
9159 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize;
9160 ctsio->kern_rel_offset = 0;
9162 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n"));
9164 retval = lun->backend->data_submit((union ctl_io *)ctsio);
9170 ctl_cnw_cont(union ctl_io *io)
9172 struct ctl_scsiio *ctsio;
9173 struct ctl_lun *lun;
9174 struct ctl_lba_len_flags *lbalen;
9177 ctsio = &io->scsiio;
9178 ctsio->io_hdr.status = CTL_STATUS_NONE;
9179 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT;
9180 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9181 lbalen = (struct ctl_lba_len_flags *)
9182 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN];
9183 lbalen->flags = CTL_LLF_WRITE;
9185 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n"));
9186 retval = lun->backend->data_submit((union ctl_io *)ctsio);
9191 ctl_cnw(struct ctl_scsiio *ctsio)
9193 struct ctl_lun *lun;
9194 struct ctl_lba_len_flags *lbalen;
9196 uint32_t num_blocks;
9200 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9202 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0]));
9207 retval = CTL_RETVAL_COMPLETE;
9209 switch (ctsio->cdb[0]) {
9210 case COMPARE_AND_WRITE: {
9211 struct scsi_compare_and_write *cdb;
9213 cdb = (struct scsi_compare_and_write *)ctsio->cdb;
9215 if (cdb->byte2 & SRW10_FUA)
9217 if (cdb->byte2 & SRW10_DPO)
9219 lba = scsi_8btou64(cdb->addr);
9220 num_blocks = cdb->length;
9225 * We got a command we don't support. This shouldn't
9226 * happen, commands should be filtered out above us.
9228 ctl_set_invalid_opcode(ctsio);
9229 ctl_done((union ctl_io *)ctsio);
9231 return (CTL_RETVAL_COMPLETE);
9232 break; /* NOTREACHED */
9236 * XXX KDM what do we do with the DPO and FUA bits? FUA might be
9237 * interesting for us, but if RAIDCore is in write-back mode,
9238 * getting it to do write-through for a particular transaction may
9243 * The first check is to make sure we're in bounds, the second
9244 * check is to catch wrap-around problems. If the lba + num blocks
9245 * is less than the lba, then we've wrapped around and the block
9246 * range is invalid anyway.
9248 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1))
9249 || ((lba + num_blocks) < lba)) {
9250 ctl_set_lba_out_of_range(ctsio);
9251 ctl_done((union ctl_io *)ctsio);
9252 return (CTL_RETVAL_COMPLETE);
9256 * According to SBC-3, a transfer length of 0 is not an error.
9258 if (num_blocks == 0) {
9259 ctl_set_success(ctsio);
9260 ctl_done((union ctl_io *)ctsio);
9261 return (CTL_RETVAL_COMPLETE);
9264 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize;
9265 ctsio->kern_rel_offset = 0;
9268 * Set the IO_CONT flag, so that if this I/O gets passed to
9269 * ctl_data_submit_done(), it'll get passed back to
9270 * ctl_ctl_cnw_cont() for further processing.
9272 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT;
9273 ctsio->io_cont = ctl_cnw_cont;
9275 lbalen = (struct ctl_lba_len_flags *)
9276 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN];
9278 lbalen->len = num_blocks;
9279 lbalen->flags = CTL_LLF_COMPARE;
9281 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n"));
9282 retval = lun->backend->data_submit((union ctl_io *)ctsio);
9287 ctl_verify(struct ctl_scsiio *ctsio)
9289 struct ctl_lun *lun;
9290 struct ctl_lba_len_flags *lbalen;
9292 uint32_t num_blocks;
9296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9298 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0]));
9302 retval = CTL_RETVAL_COMPLETE;
9304 switch (ctsio->cdb[0]) {
9306 struct scsi_verify_10 *cdb;
9308 cdb = (struct scsi_verify_10 *)ctsio->cdb;
9309 if (cdb->byte2 & SVFY_BYTCHK)
9311 if (cdb->byte2 & SVFY_DPO)
9313 lba = scsi_4btoul(cdb->addr);
9314 num_blocks = scsi_2btoul(cdb->length);
9318 struct scsi_verify_12 *cdb;
9320 cdb = (struct scsi_verify_12 *)ctsio->cdb;
9321 if (cdb->byte2 & SVFY_BYTCHK)
9323 if (cdb->byte2 & SVFY_DPO)
9325 lba = scsi_4btoul(cdb->addr);
9326 num_blocks = scsi_4btoul(cdb->length);
9330 struct scsi_rw_16 *cdb;
9332 cdb = (struct scsi_rw_16 *)ctsio->cdb;
9333 if (cdb->byte2 & SVFY_BYTCHK)
9335 if (cdb->byte2 & SVFY_DPO)
9337 lba = scsi_8btou64(cdb->addr);
9338 num_blocks = scsi_4btoul(cdb->length);
9343 * We got a command we don't support. This shouldn't
9344 * happen, commands should be filtered out above us.
9346 ctl_set_invalid_opcode(ctsio);
9347 ctl_done((union ctl_io *)ctsio);
9348 return (CTL_RETVAL_COMPLETE);
9352 * The first check is to make sure we're in bounds, the second
9353 * check is to catch wrap-around problems. If the lba + num blocks
9354 * is less than the lba, then we've wrapped around and the block
9355 * range is invalid anyway.
9357 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1))
9358 || ((lba + num_blocks) < lba)) {
9359 ctl_set_lba_out_of_range(ctsio);
9360 ctl_done((union ctl_io *)ctsio);
9361 return (CTL_RETVAL_COMPLETE);
9365 * According to SBC-3, a transfer length of 0 is not an error.
9367 if (num_blocks == 0) {
9368 ctl_set_success(ctsio);
9369 ctl_done((union ctl_io *)ctsio);
9370 return (CTL_RETVAL_COMPLETE);
9373 lbalen = (struct ctl_lba_len_flags *)
9374 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN];
9376 lbalen->len = num_blocks;
9378 lbalen->flags = CTL_LLF_COMPARE;
9379 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize;
9381 lbalen->flags = CTL_LLF_VERIFY;
9382 ctsio->kern_total_len = 0;
9384 ctsio->kern_rel_offset = 0;
9386 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n"));
9387 retval = lun->backend->data_submit((union ctl_io *)ctsio);
9392 ctl_report_luns(struct ctl_scsiio *ctsio)
9394 struct scsi_report_luns *cdb;
9395 struct scsi_report_luns_data *lun_data;
9396 struct ctl_lun *lun, *request_lun;
9397 int num_luns, retval;
9398 uint32_t alloc_len, lun_datalen;
9399 int num_filled, well_known;
9400 uint32_t initidx, targ_lun_id, lun_id;
9402 retval = CTL_RETVAL_COMPLETE;
9405 cdb = (struct scsi_report_luns *)ctsio->cdb;
9407 CTL_DEBUG_PRINT(("ctl_report_luns\n"));
9409 mtx_lock(&control_softc->ctl_lock);
9410 num_luns = control_softc->num_luns;
9411 mtx_unlock(&control_softc->ctl_lock);
9413 switch (cdb->select_report) {
9414 case RPL_REPORT_DEFAULT:
9415 case RPL_REPORT_ALL:
9417 case RPL_REPORT_WELLKNOWN:
9422 ctl_set_invalid_field(ctsio,
9428 ctl_done((union ctl_io *)ctsio);
9430 break; /* NOTREACHED */
9433 alloc_len = scsi_4btoul(cdb->length);
9435 * The initiator has to allocate at least 16 bytes for this request,
9436 * so he can at least get the header and the first LUN. Otherwise
9437 * we reject the request (per SPC-3 rev 14, section 6.21).
9439 if (alloc_len < (sizeof(struct scsi_report_luns_data) +
9440 sizeof(struct scsi_report_luns_lundata))) {
9441 ctl_set_invalid_field(ctsio,
9447 ctl_done((union ctl_io *)ctsio);
9451 request_lun = (struct ctl_lun *)
9452 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9454 lun_datalen = sizeof(*lun_data) +
9455 (num_luns * sizeof(struct scsi_report_luns_lundata));
9457 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO);
9458 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr;
9459 ctsio->kern_sg_entries = 0;
9461 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus);
9463 mtx_lock(&control_softc->ctl_lock);
9464 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) {
9465 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id);
9466 if (lun_id >= CTL_MAX_LUNS)
9468 lun = control_softc->ctl_luns[lun_id];
9472 if (targ_lun_id <= 0xff) {
9474 * Peripheral addressing method, bus number 0.
9476 lun_data->luns[num_filled].lundata[0] =
9477 RPL_LUNDATA_ATYP_PERIPH;
9478 lun_data->luns[num_filled].lundata[1] = targ_lun_id;
9480 } else if (targ_lun_id <= 0x3fff) {
9482 * Flat addressing method.
9484 lun_data->luns[num_filled].lundata[0] =
9485 RPL_LUNDATA_ATYP_FLAT |
9486 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK);
9487 #ifdef OLDCTLHEADERS
9488 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) |
9489 (targ_lun_id & SRLD_BUS_LUN_MASK);
9491 lun_data->luns[num_filled].lundata[1] =
9492 #ifdef OLDCTLHEADERS
9493 targ_lun_id >> SRLD_BUS_LUN_BITS;
9495 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS;
9498 printf("ctl_report_luns: bogus LUN number %jd, "
9499 "skipping\n", (intmax_t)targ_lun_id);
9502 * According to SPC-3, rev 14 section 6.21:
9504 * "The execution of a REPORT LUNS command to any valid and
9505 * installed logical unit shall clear the REPORTED LUNS DATA
9506 * HAS CHANGED unit attention condition for all logical
9507 * units of that target with respect to the requesting
9508 * initiator. A valid and installed logical unit is one
9509 * having a PERIPHERAL QUALIFIER of 000b in the standard
9510 * INQUIRY data (see 6.4.2)."
9512 * If request_lun is NULL, the LUN this report luns command
9513 * was issued to is either disabled or doesn't exist. In that
9514 * case, we shouldn't clear any pending lun change unit
9517 if (request_lun != NULL) {
9518 mtx_lock(&lun->lun_lock);
9519 lun->pending_sense[initidx].ua_pending &=
9521 mtx_unlock(&lun->lun_lock);
9524 mtx_unlock(&control_softc->ctl_lock);
9527 * It's quite possible that we've returned fewer LUNs than we allocated
9528 * space for. Trim it.
9530 lun_datalen = sizeof(*lun_data) +
9531 (num_filled * sizeof(struct scsi_report_luns_lundata));
9533 if (lun_datalen < alloc_len) {
9534 ctsio->residual = alloc_len - lun_datalen;
9535 ctsio->kern_data_len = lun_datalen;
9536 ctsio->kern_total_len = lun_datalen;
9538 ctsio->residual = 0;
9539 ctsio->kern_data_len = alloc_len;
9540 ctsio->kern_total_len = alloc_len;
9542 ctsio->kern_data_resid = 0;
9543 ctsio->kern_rel_offset = 0;
9544 ctsio->kern_sg_entries = 0;
9547 * We set this to the actual data length, regardless of how much
9548 * space we actually have to return results. If the user looks at
9549 * this value, he'll know whether or not he allocated enough space
9550 * and reissue the command if necessary. We don't support well
9551 * known logical units, so if the user asks for that, return none.
9553 scsi_ulto4b(lun_datalen - 8, lun_data->length);
9556 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy
9559 ctsio->scsi_status = SCSI_STATUS_OK;
9561 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
9562 ctsio->be_move_done = ctl_config_move_done;
9563 ctl_datamove((union ctl_io *)ctsio);
9569 ctl_request_sense(struct ctl_scsiio *ctsio)
9571 struct scsi_request_sense *cdb;
9572 struct scsi_sense_data *sense_ptr;
9573 struct ctl_lun *lun;
9576 scsi_sense_data_type sense_format;
9578 cdb = (struct scsi_request_sense *)ctsio->cdb;
9580 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9582 CTL_DEBUG_PRINT(("ctl_request_sense\n"));
9585 * Determine which sense format the user wants.
9587 if (cdb->byte2 & SRS_DESC)
9588 sense_format = SSD_TYPE_DESC;
9590 sense_format = SSD_TYPE_FIXED;
9592 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK);
9593 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr;
9594 ctsio->kern_sg_entries = 0;
9597 * struct scsi_sense_data, which is currently set to 256 bytes, is
9598 * larger than the largest allowed value for the length field in the
9599 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4.
9601 ctsio->residual = 0;
9602 ctsio->kern_data_len = cdb->length;
9603 ctsio->kern_total_len = cdb->length;
9605 ctsio->kern_data_resid = 0;
9606 ctsio->kern_rel_offset = 0;
9607 ctsio->kern_sg_entries = 0;
9610 * If we don't have a LUN, we don't have any pending sense.
9616 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus);
9618 * Check for pending sense, and then for pending unit attentions.
9619 * Pending sense gets returned first, then pending unit attentions.
9621 mtx_lock(&lun->lun_lock);
9622 if (ctl_is_set(lun->have_ca, initidx)) {
9623 scsi_sense_data_type stored_format;
9626 * Check to see which sense format was used for the stored
9629 stored_format = scsi_sense_type(
9630 &lun->pending_sense[initidx].sense);
9633 * If the user requested a different sense format than the
9634 * one we stored, then we need to convert it to the other
9635 * format. If we're going from descriptor to fixed format
9636 * sense data, we may lose things in translation, depending
9637 * on what options were used.
9639 * If the stored format is SSD_TYPE_NONE (i.e. invalid),
9640 * for some reason we'll just copy it out as-is.
9642 if ((stored_format == SSD_TYPE_FIXED)
9643 && (sense_format == SSD_TYPE_DESC))
9644 ctl_sense_to_desc((struct scsi_sense_data_fixed *)
9645 &lun->pending_sense[initidx].sense,
9646 (struct scsi_sense_data_desc *)sense_ptr);
9647 else if ((stored_format == SSD_TYPE_DESC)
9648 && (sense_format == SSD_TYPE_FIXED))
9649 ctl_sense_to_fixed((struct scsi_sense_data_desc *)
9650 &lun->pending_sense[initidx].sense,
9651 (struct scsi_sense_data_fixed *)sense_ptr);
9653 memcpy(sense_ptr, &lun->pending_sense[initidx].sense,
9654 ctl_min(sizeof(*sense_ptr),
9655 sizeof(lun->pending_sense[initidx].sense)));
9657 ctl_clear_mask(lun->have_ca, initidx);
9659 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) {
9660 ctl_ua_type ua_type;
9662 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending,
9663 sense_ptr, sense_format);
9664 if (ua_type != CTL_UA_NONE) {
9666 /* We're reporting this UA, so clear it */
9667 lun->pending_sense[initidx].ua_pending &= ~ua_type;
9670 mtx_unlock(&lun->lun_lock);
9673 * We already have a pending error, return it.
9675 if (have_error != 0) {
9677 * We report the SCSI status as OK, since the status of the
9678 * request sense command itself is OK.
9680 ctsio->scsi_status = SCSI_STATUS_OK;
9683 * We report 0 for the sense length, because we aren't doing
9684 * autosense in this case. We're reporting sense as
9687 ctsio->sense_len = 0;
9688 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
9689 ctsio->be_move_done = ctl_config_move_done;
9690 ctl_datamove((union ctl_io *)ctsio);
9692 return (CTL_RETVAL_COMPLETE);
9698 * No sense information to report, so we report that everything is
9701 ctl_set_sense_data(sense_ptr,
9704 /*current_error*/ 1,
9705 /*sense_key*/ SSD_KEY_NO_SENSE,
9710 ctsio->scsi_status = SCSI_STATUS_OK;
9713 * We report 0 for the sense length, because we aren't doing
9714 * autosense in this case. We're reporting sense as parameter data.
9716 ctsio->sense_len = 0;
9717 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
9718 ctsio->be_move_done = ctl_config_move_done;
9719 ctl_datamove((union ctl_io *)ctsio);
9721 return (CTL_RETVAL_COMPLETE);
9725 ctl_tur(struct ctl_scsiio *ctsio)
9727 struct ctl_lun *lun;
9729 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9731 CTL_DEBUG_PRINT(("ctl_tur\n"));
9736 ctsio->scsi_status = SCSI_STATUS_OK;
9737 ctsio->io_hdr.status = CTL_SUCCESS;
9739 ctl_done((union ctl_io *)ctsio);
9741 return (CTL_RETVAL_COMPLETE);
9746 ctl_cmddt_inquiry(struct ctl_scsiio *ctsio)
9753 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len)
9755 struct scsi_vpd_supported_pages *pages;
9757 struct ctl_lun *lun;
9759 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9761 sup_page_size = sizeof(struct scsi_vpd_supported_pages) *
9762 SCSI_EVPD_NUM_SUPPORTED_PAGES;
9763 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO);
9764 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr;
9765 ctsio->kern_sg_entries = 0;
9767 if (sup_page_size < alloc_len) {
9768 ctsio->residual = alloc_len - sup_page_size;
9769 ctsio->kern_data_len = sup_page_size;
9770 ctsio->kern_total_len = sup_page_size;
9772 ctsio->residual = 0;
9773 ctsio->kern_data_len = alloc_len;
9774 ctsio->kern_total_len = alloc_len;
9776 ctsio->kern_data_resid = 0;
9777 ctsio->kern_rel_offset = 0;
9778 ctsio->kern_sg_entries = 0;
9781 * The control device is always connected. The disk device, on the
9782 * other hand, may not be online all the time. Need to change this
9783 * to figure out whether the disk device is actually online or not.
9786 pages->device = (SID_QUAL_LU_CONNECTED << 5) |
9787 lun->be_lun->lun_type;
9789 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
9791 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES;
9792 /* Supported VPD pages */
9793 pages->page_list[0] = SVPD_SUPPORTED_PAGES;
9795 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER;
9796 /* Device Identification */
9797 pages->page_list[2] = SVPD_DEVICE_ID;
9799 pages->page_list[3] = SVPD_SCSI_PORTS;
9801 pages->page_list[4] = SVPD_BLOCK_LIMITS;
9802 /* Logical Block Provisioning */
9803 pages->page_list[5] = SVPD_LBP;
9805 ctsio->scsi_status = SCSI_STATUS_OK;
9807 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
9808 ctsio->be_move_done = ctl_config_move_done;
9809 ctl_datamove((union ctl_io *)ctsio);
9811 return (CTL_RETVAL_COMPLETE);
9815 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len)
9817 struct scsi_vpd_unit_serial_number *sn_ptr;
9818 struct ctl_lun *lun;
9820 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9822 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO);
9823 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr;
9824 ctsio->kern_sg_entries = 0;
9826 if (sizeof(*sn_ptr) < alloc_len) {
9827 ctsio->residual = alloc_len - sizeof(*sn_ptr);
9828 ctsio->kern_data_len = sizeof(*sn_ptr);
9829 ctsio->kern_total_len = sizeof(*sn_ptr);
9831 ctsio->residual = 0;
9832 ctsio->kern_data_len = alloc_len;
9833 ctsio->kern_total_len = alloc_len;
9835 ctsio->kern_data_resid = 0;
9836 ctsio->kern_rel_offset = 0;
9837 ctsio->kern_sg_entries = 0;
9840 * The control device is always connected. The disk device, on the
9841 * other hand, may not be online all the time. Need to change this
9842 * to figure out whether the disk device is actually online or not.
9845 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
9846 lun->be_lun->lun_type;
9848 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
9850 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER;
9851 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN);
9853 * If we don't have a LUN, we just leave the serial number as
9856 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num));
9858 strncpy((char *)sn_ptr->serial_num,
9859 (char *)lun->be_lun->serial_num, CTL_SN_LEN);
9861 ctsio->scsi_status = SCSI_STATUS_OK;
9863 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
9864 ctsio->be_move_done = ctl_config_move_done;
9865 ctl_datamove((union ctl_io *)ctsio);
9867 return (CTL_RETVAL_COMPLETE);
9872 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len)
9874 struct scsi_vpd_device_id *devid_ptr;
9875 struct scsi_vpd_id_descriptor *desc;
9876 struct ctl_softc *ctl_softc;
9877 struct ctl_lun *lun;
9878 struct ctl_port *port;
9882 ctl_softc = control_softc;
9884 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)];
9885 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
9887 data_len = sizeof(struct scsi_vpd_device_id) +
9888 sizeof(struct scsi_vpd_id_descriptor) +
9889 sizeof(struct scsi_vpd_id_rel_trgt_port_id) +
9890 sizeof(struct scsi_vpd_id_descriptor) +
9891 sizeof(struct scsi_vpd_id_trgt_port_grp_id);
9892 if (lun && lun->lun_devid)
9893 data_len += lun->lun_devid->len;
9894 if (port->port_devid)
9895 data_len += port->port_devid->len;
9896 if (port->target_devid)
9897 data_len += port->target_devid->len;
9899 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
9900 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr;
9901 ctsio->kern_sg_entries = 0;
9903 if (data_len < alloc_len) {
9904 ctsio->residual = alloc_len - data_len;
9905 ctsio->kern_data_len = data_len;
9906 ctsio->kern_total_len = data_len;
9908 ctsio->residual = 0;
9909 ctsio->kern_data_len = alloc_len;
9910 ctsio->kern_total_len = alloc_len;
9912 ctsio->kern_data_resid = 0;
9913 ctsio->kern_rel_offset = 0;
9914 ctsio->kern_sg_entries = 0;
9917 * The control device is always connected. The disk device, on the
9918 * other hand, may not be online all the time.
9921 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
9922 lun->be_lun->lun_type;
9924 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
9925 devid_ptr->page_code = SVPD_DEVICE_ID;
9926 scsi_ulto2b(data_len - 4, devid_ptr->length);
9928 if (port->port_type == CTL_PORT_FC)
9929 proto = SCSI_PROTO_FC << 4;
9930 else if (port->port_type == CTL_PORT_ISCSI)
9931 proto = SCSI_PROTO_ISCSI << 4;
9933 proto = SCSI_PROTO_SPI << 4;
9934 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list;
9937 * We're using a LUN association here. i.e., this device ID is a
9938 * per-LUN identifier.
9940 if (lun && lun->lun_devid) {
9941 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len);
9942 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc +
9943 lun->lun_devid->len);
9947 * This is for the WWPN which is a port association.
9949 if (port->port_devid) {
9950 memcpy(desc, port->port_devid->data, port->port_devid->len);
9951 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc +
9952 port->port_devid->len);
9956 * This is for the Relative Target Port(type 4h) identifier
9958 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY;
9959 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT |
9960 SVPD_ID_TYPE_RELTARG;
9962 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]);
9963 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] +
9964 sizeof(struct scsi_vpd_id_rel_trgt_port_id));
9967 * This is for the Target Port Group(type 5h) identifier
9969 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY;
9970 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT |
9971 SVPD_ID_TYPE_TPORTGRP;
9973 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1,
9974 &desc->identifier[2]);
9975 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] +
9976 sizeof(struct scsi_vpd_id_trgt_port_grp_id));
9979 * This is for the Target identifier
9981 if (port->target_devid) {
9982 memcpy(desc, port->target_devid->data, port->target_devid->len);
9985 ctsio->scsi_status = SCSI_STATUS_OK;
9986 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
9987 ctsio->be_move_done = ctl_config_move_done;
9988 ctl_datamove((union ctl_io *)ctsio);
9990 return (CTL_RETVAL_COMPLETE);
9994 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len)
9996 struct ctl_softc *softc = control_softc;
9997 struct scsi_vpd_scsi_ports *sp;
9998 struct scsi_vpd_port_designation *pd;
9999 struct scsi_vpd_port_designation_cont *pdc;
10000 struct ctl_lun *lun;
10001 struct ctl_port *port;
10002 int data_len, num_target_ports, id_len, g, pg, p;
10003 int num_target_port_groups, single;
10005 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
10007 single = ctl_is_single;
10009 num_target_port_groups = 1;
10011 num_target_port_groups = NUM_TARGET_PORT_GROUPS;
10012 num_target_ports = 0;
10014 mtx_lock(&softc->ctl_lock);
10015 STAILQ_FOREACH(port, &softc->port_list, links) {
10016 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0)
10018 if (ctl_map_lun_back(port->targ_port, lun->lun) >=
10021 num_target_ports++;
10022 if (port->port_devid)
10023 id_len += port->port_devid->len;
10025 mtx_unlock(&softc->ctl_lock);
10027 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups *
10028 num_target_ports * (sizeof(struct scsi_vpd_port_designation) +
10029 sizeof(struct scsi_vpd_port_designation_cont)) + id_len;
10030 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
10031 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr;
10032 ctsio->kern_sg_entries = 0;
10034 if (data_len < alloc_len) {
10035 ctsio->residual = alloc_len - data_len;
10036 ctsio->kern_data_len = data_len;
10037 ctsio->kern_total_len = data_len;
10039 ctsio->residual = 0;
10040 ctsio->kern_data_len = alloc_len;
10041 ctsio->kern_total_len = alloc_len;
10043 ctsio->kern_data_resid = 0;
10044 ctsio->kern_rel_offset = 0;
10045 ctsio->kern_sg_entries = 0;
10048 * The control device is always connected. The disk device, on the
10049 * other hand, may not be online all the time. Need to change this
10050 * to figure out whether the disk device is actually online or not.
10053 sp->device = (SID_QUAL_LU_CONNECTED << 5) |
10054 lun->be_lun->lun_type;
10056 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
10058 sp->page_code = SVPD_SCSI_PORTS;
10059 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports),
10061 pd = &sp->design[0];
10063 mtx_lock(&softc->ctl_lock);
10064 if (softc->flags & CTL_FLAG_MASTER_SHELF)
10068 for (g = 0; g < num_target_port_groups; g++) {
10069 STAILQ_FOREACH(port, &softc->port_list, links) {
10070 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0)
10072 if (ctl_map_lun_back(port->targ_port, lun->lun) >=
10075 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS;
10076 scsi_ulto2b(p, pd->relative_port_id);
10077 scsi_ulto2b(0, pd->initiator_transportid_length);
10078 pdc = (struct scsi_vpd_port_designation_cont *)
10079 &pd->initiator_transportid[0];
10080 if (port->port_devid && g == pg) {
10081 id_len = port->port_devid->len;
10082 scsi_ulto2b(port->port_devid->len,
10083 pdc->target_port_descriptors_length);
10084 memcpy(pdc->target_port_descriptors,
10085 port->port_devid->data, port->port_devid->len);
10088 scsi_ulto2b(0, pdc->target_port_descriptors_length);
10090 pd = (struct scsi_vpd_port_designation *)
10091 ((uint8_t *)pdc->target_port_descriptors + id_len);
10094 mtx_unlock(&softc->ctl_lock);
10096 ctsio->scsi_status = SCSI_STATUS_OK;
10097 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
10098 ctsio->be_move_done = ctl_config_move_done;
10099 ctl_datamove((union ctl_io *)ctsio);
10101 return (CTL_RETVAL_COMPLETE);
10105 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len)
10107 struct scsi_vpd_block_limits *bl_ptr;
10108 struct ctl_lun *lun;
10111 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
10112 bs = lun->be_lun->blocksize;
10114 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO);
10115 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr;
10116 ctsio->kern_sg_entries = 0;
10118 if (sizeof(*bl_ptr) < alloc_len) {
10119 ctsio->residual = alloc_len - sizeof(*bl_ptr);
10120 ctsio->kern_data_len = sizeof(*bl_ptr);
10121 ctsio->kern_total_len = sizeof(*bl_ptr);
10123 ctsio->residual = 0;
10124 ctsio->kern_data_len = alloc_len;
10125 ctsio->kern_total_len = alloc_len;
10127 ctsio->kern_data_resid = 0;
10128 ctsio->kern_rel_offset = 0;
10129 ctsio->kern_sg_entries = 0;
10132 * The control device is always connected. The disk device, on the
10133 * other hand, may not be online all the time. Need to change this
10134 * to figure out whether the disk device is actually online or not.
10137 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
10138 lun->be_lun->lun_type;
10140 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
10142 bl_ptr->page_code = SVPD_BLOCK_LIMITS;
10143 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length);
10144 bl_ptr->max_cmp_write_len = 0xff;
10145 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len);
10146 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len);
10147 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) {
10148 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt);
10149 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt);
10151 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length);
10153 ctsio->scsi_status = SCSI_STATUS_OK;
10154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
10155 ctsio->be_move_done = ctl_config_move_done;
10156 ctl_datamove((union ctl_io *)ctsio);
10158 return (CTL_RETVAL_COMPLETE);
10162 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len)
10164 struct scsi_vpd_logical_block_prov *lbp_ptr;
10165 struct ctl_lun *lun;
10168 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
10169 bs = lun->be_lun->blocksize;
10171 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO);
10172 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr;
10173 ctsio->kern_sg_entries = 0;
10175 if (sizeof(*lbp_ptr) < alloc_len) {
10176 ctsio->residual = alloc_len - sizeof(*lbp_ptr);
10177 ctsio->kern_data_len = sizeof(*lbp_ptr);
10178 ctsio->kern_total_len = sizeof(*lbp_ptr);
10180 ctsio->residual = 0;
10181 ctsio->kern_data_len = alloc_len;
10182 ctsio->kern_total_len = alloc_len;
10184 ctsio->kern_data_resid = 0;
10185 ctsio->kern_rel_offset = 0;
10186 ctsio->kern_sg_entries = 0;
10189 * The control device is always connected. The disk device, on the
10190 * other hand, may not be online all the time. Need to change this
10191 * to figure out whether the disk device is actually online or not.
10194 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
10195 lun->be_lun->lun_type;
10197 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
10199 lbp_ptr->page_code = SVPD_LBP;
10200 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP)
10201 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10;
10203 ctsio->scsi_status = SCSI_STATUS_OK;
10204 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
10205 ctsio->be_move_done = ctl_config_move_done;
10206 ctl_datamove((union ctl_io *)ctsio);
10208 return (CTL_RETVAL_COMPLETE);
10212 ctl_inquiry_evpd(struct ctl_scsiio *ctsio)
10214 struct scsi_inquiry *cdb;
10215 struct ctl_lun *lun;
10216 int alloc_len, retval;
10218 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
10219 cdb = (struct scsi_inquiry *)ctsio->cdb;
10221 retval = CTL_RETVAL_COMPLETE;
10223 alloc_len = scsi_2btoul(cdb->length);
10225 switch (cdb->page_code) {
10226 case SVPD_SUPPORTED_PAGES:
10227 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len);
10229 case SVPD_UNIT_SERIAL_NUMBER:
10230 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len);
10232 case SVPD_DEVICE_ID:
10233 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len);
10235 case SVPD_SCSI_PORTS:
10236 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len);
10238 case SVPD_BLOCK_LIMITS:
10239 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len);
10242 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len);
10245 ctl_set_invalid_field(ctsio,
10251 ctl_done((union ctl_io *)ctsio);
10252 retval = CTL_RETVAL_COMPLETE;
10260 ctl_inquiry_std(struct ctl_scsiio *ctsio)
10262 struct scsi_inquiry_data *inq_ptr;
10263 struct scsi_inquiry *cdb;
10264 struct ctl_softc *ctl_softc;
10265 struct ctl_lun *lun;
10267 uint32_t alloc_len;
10270 ctl_softc = control_softc;
10273 * Figure out whether we're talking to a Fibre Channel port or not.
10274 * We treat the ioctl front end, and any SCSI adapters, as packetized
10277 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type !=
10283 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
10284 cdb = (struct scsi_inquiry *)ctsio->cdb;
10285 alloc_len = scsi_2btoul(cdb->length);
10288 * We malloc the full inquiry data size here and fill it
10289 * in. If the user only asks for less, we'll give him
10292 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO);
10293 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr;
10294 ctsio->kern_sg_entries = 0;
10295 ctsio->kern_data_resid = 0;
10296 ctsio->kern_rel_offset = 0;
10298 if (sizeof(*inq_ptr) < alloc_len) {
10299 ctsio->residual = alloc_len - sizeof(*inq_ptr);
10300 ctsio->kern_data_len = sizeof(*inq_ptr);
10301 ctsio->kern_total_len = sizeof(*inq_ptr);
10303 ctsio->residual = 0;
10304 ctsio->kern_data_len = alloc_len;
10305 ctsio->kern_total_len = alloc_len;
10309 * If we have a LUN configured, report it as connected. Otherwise,
10310 * report that it is offline or no device is supported, depending
10311 * on the value of inquiry_pq_no_lun.
10313 * According to the spec (SPC-4 r34), the peripheral qualifier
10314 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario:
10316 * "A peripheral device having the specified peripheral device type
10317 * is not connected to this logical unit. However, the device
10318 * server is capable of supporting the specified peripheral device
10319 * type on this logical unit."
10321 * According to the same spec, the peripheral qualifier
10322 * SID_QUAL_BAD_LU (011b) is used in this scenario:
10324 * "The device server is not capable of supporting a peripheral
10325 * device on this logical unit. For this peripheral qualifier the
10326 * peripheral device type shall be set to 1Fh. All other peripheral
10327 * device type values are reserved for this peripheral qualifier."
10329 * Given the text, it would seem that we probably want to report that
10330 * the LUN is offline here. There is no LUN connected, but we can
10331 * support a LUN at the given LUN number.
10333 * In the real world, though, it sounds like things are a little
10336 * - Linux, when presented with a LUN with the offline peripheral
10337 * qualifier, will create an sg driver instance for it. So when
10338 * you attach it to CTL, you wind up with a ton of sg driver
10339 * instances. (One for every LUN that Linux bothered to probe.)
10340 * Linux does this despite the fact that it issues a REPORT LUNs
10341 * to LUN 0 to get the inventory of supported LUNs.
10343 * - There is other anecdotal evidence (from Emulex folks) about
10344 * arrays that use the offline peripheral qualifier for LUNs that
10345 * are on the "passive" path in an active/passive array.
10347 * So the solution is provide a hopefully reasonable default
10348 * (return bad/no LUN) and allow the user to change the behavior
10349 * with a tunable/sysctl variable.
10352 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) |
10353 lun->be_lun->lun_type;
10354 else if (ctl_softc->inquiry_pq_no_lun == 0)
10355 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
10357 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE;
10359 /* RMB in byte 2 is 0 */
10360 inq_ptr->version = SCSI_REV_SPC3;
10363 * According to SAM-3, even if a device only supports a single
10364 * level of LUN addressing, it should still set the HISUP bit:
10366 * 4.9.1 Logical unit numbers overview
10368 * All logical unit number formats described in this standard are
10369 * hierarchical in structure even when only a single level in that
10370 * hierarchy is used. The HISUP bit shall be set to one in the
10371 * standard INQUIRY data (see SPC-2) when any logical unit number
10372 * format described in this standard is used. Non-hierarchical
10373 * formats are outside the scope of this standard.
10375 * Therefore we set the HiSup bit here.
10377 * The reponse format is 2, per SPC-3.
10379 inq_ptr->response_format = SID_HiSup | 2;
10381 inq_ptr->additional_length = sizeof(*inq_ptr) - 4;
10382 CTL_DEBUG_PRINT(("additional_length = %d\n",
10383 inq_ptr->additional_length));
10385 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT;
10386 /* 16 bit addressing */
10388 inq_ptr->spc2_flags = SPC2_SID_ADDR16;
10389 /* XXX set the SID_MultiP bit here if we're actually going to
10390 respond on multiple ports */
10391 inq_ptr->spc2_flags |= SPC2_SID_MultiP;
10393 /* 16 bit data bus, synchronous transfers */
10394 /* XXX these flags don't apply for FC */
10396 inq_ptr->flags = SID_WBus16 | SID_Sync;
10398 * XXX KDM do we want to support tagged queueing on the control
10402 || (lun->be_lun->lun_type != T_PROCESSOR))
10403 inq_ptr->flags |= SID_CmdQue;
10405 * Per SPC-3, unused bytes in ASCII strings are filled with spaces.
10406 * We have 8 bytes for the vendor name, and 16 bytes for the device
10407 * name and 4 bytes for the revision.
10409 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options,
10410 "vendor")) == NULL) {
10411 strcpy(inq_ptr->vendor, CTL_VENDOR);
10413 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor));
10414 strncpy(inq_ptr->vendor, val,
10415 min(sizeof(inq_ptr->vendor), strlen(val)));
10418 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT);
10419 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) {
10420 switch (lun->be_lun->lun_type) {
10422 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT);
10425 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT);
10428 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT);
10432 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product));
10433 strncpy(inq_ptr->product, val,
10434 min(sizeof(inq_ptr->product), strlen(val)));
10438 * XXX make this a macro somewhere so it automatically gets
10439 * incremented when we make changes.
10441 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options,
10442 "revision")) == NULL) {
10443 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision));
10445 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision));
10446 strncpy(inq_ptr->revision, val,
10447 min(sizeof(inq_ptr->revision), strlen(val)));
10451 * For parallel SCSI, we support double transition and single
10452 * transition clocking. We also support QAS (Quick Arbitration
10453 * and Selection) and Information Unit transfers on both the
10454 * control and array devices.
10457 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS |
10461 scsi_ulto2b(0x0060, inq_ptr->version1);
10462 /* SPC-3 (no version claimed) XXX should we claim a version? */
10463 scsi_ulto2b(0x0300, inq_ptr->version2);
10465 /* FCP-2 ANSI INCITS.350:2003 */
10466 scsi_ulto2b(0x0917, inq_ptr->version3);
10468 /* SPI-4 ANSI INCITS.362:200x */
10469 scsi_ulto2b(0x0B56, inq_ptr->version3);
10473 /* SBC-2 (no version claimed) XXX should we claim a version? */
10474 scsi_ulto2b(0x0320, inq_ptr->version4);
10476 switch (lun->be_lun->lun_type) {
10479 * SBC-2 (no version claimed) XXX should we claim a
10482 scsi_ulto2b(0x0320, inq_ptr->version4);
10490 ctsio->scsi_status = SCSI_STATUS_OK;
10491 if (ctsio->kern_data_len > 0) {
10492 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
10493 ctsio->be_move_done = ctl_config_move_done;
10494 ctl_datamove((union ctl_io *)ctsio);
10496 ctsio->io_hdr.status = CTL_SUCCESS;
10497 ctl_done((union ctl_io *)ctsio);
10500 return (CTL_RETVAL_COMPLETE);
10504 ctl_inquiry(struct ctl_scsiio *ctsio)
10506 struct scsi_inquiry *cdb;
10509 cdb = (struct scsi_inquiry *)ctsio->cdb;
10513 CTL_DEBUG_PRINT(("ctl_inquiry\n"));
10516 * Right now, we don't support the CmdDt inquiry information.
10517 * This would be nice to support in the future. When we do
10518 * support it, we should change this test so that it checks to make
10519 * sure SI_EVPD and SI_CMDDT aren't both set at the same time.
10522 if (((cdb->byte2 & SI_EVPD)
10523 && (cdb->byte2 & SI_CMDDT)))
10525 if (cdb->byte2 & SI_CMDDT) {
10527 * Point to the SI_CMDDT bit. We might change this
10528 * when we support SI_CMDDT, but since both bits would be
10529 * "wrong", this should probably just stay as-is then.
10531 ctl_set_invalid_field(ctsio,
10537 ctl_done((union ctl_io *)ctsio);
10538 return (CTL_RETVAL_COMPLETE);
10540 if (cdb->byte2 & SI_EVPD)
10541 retval = ctl_inquiry_evpd(ctsio);
10543 else if (cdb->byte2 & SI_CMDDT)
10544 retval = ctl_inquiry_cmddt(ctsio);
10547 retval = ctl_inquiry_std(ctsio);
10553 * For known CDB types, parse the LBA and length.
10556 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len)
10558 if (io->io_hdr.io_type != CTL_IO_SCSI)
10561 switch (io->scsiio.cdb[0]) {
10562 case COMPARE_AND_WRITE: {
10563 struct scsi_compare_and_write *cdb;
10565 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb;
10567 *lba = scsi_8btou64(cdb->addr);
10568 *len = cdb->length;
10573 struct scsi_rw_6 *cdb;
10575 cdb = (struct scsi_rw_6 *)io->scsiio.cdb;
10577 *lba = scsi_3btoul(cdb->addr);
10578 /* only 5 bits are valid in the most significant address byte */
10580 *len = cdb->length;
10585 struct scsi_rw_10 *cdb;
10587 cdb = (struct scsi_rw_10 *)io->scsiio.cdb;
10589 *lba = scsi_4btoul(cdb->addr);
10590 *len = scsi_2btoul(cdb->length);
10593 case WRITE_VERIFY_10: {
10594 struct scsi_write_verify_10 *cdb;
10596 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb;
10598 *lba = scsi_4btoul(cdb->addr);
10599 *len = scsi_2btoul(cdb->length);
10604 struct scsi_rw_12 *cdb;
10606 cdb = (struct scsi_rw_12 *)io->scsiio.cdb;
10608 *lba = scsi_4btoul(cdb->addr);
10609 *len = scsi_4btoul(cdb->length);
10612 case WRITE_VERIFY_12: {
10613 struct scsi_write_verify_12 *cdb;
10615 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb;
10617 *lba = scsi_4btoul(cdb->addr);
10618 *len = scsi_4btoul(cdb->length);
10623 struct scsi_rw_16 *cdb;
10625 cdb = (struct scsi_rw_16 *)io->scsiio.cdb;
10627 *lba = scsi_8btou64(cdb->addr);
10628 *len = scsi_4btoul(cdb->length);
10631 case WRITE_VERIFY_16: {
10632 struct scsi_write_verify_16 *cdb;
10634 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb;
10637 *lba = scsi_8btou64(cdb->addr);
10638 *len = scsi_4btoul(cdb->length);
10641 case WRITE_SAME_10: {
10642 struct scsi_write_same_10 *cdb;
10644 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb;
10646 *lba = scsi_4btoul(cdb->addr);
10647 *len = scsi_2btoul(cdb->length);
10650 case WRITE_SAME_16: {
10651 struct scsi_write_same_16 *cdb;
10653 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb;
10655 *lba = scsi_8btou64(cdb->addr);
10656 *len = scsi_4btoul(cdb->length);
10660 struct scsi_verify_10 *cdb;
10662 cdb = (struct scsi_verify_10 *)io->scsiio.cdb;
10664 *lba = scsi_4btoul(cdb->addr);
10665 *len = scsi_2btoul(cdb->length);
10669 struct scsi_verify_12 *cdb;
10671 cdb = (struct scsi_verify_12 *)io->scsiio.cdb;
10673 *lba = scsi_4btoul(cdb->addr);
10674 *len = scsi_4btoul(cdb->length);
10678 struct scsi_verify_16 *cdb;
10680 cdb = (struct scsi_verify_16 *)io->scsiio.cdb;
10682 *lba = scsi_8btou64(cdb->addr);
10683 *len = scsi_4btoul(cdb->length);
10688 break; /* NOTREACHED */
10695 ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2)
10697 uint64_t endlba1, endlba2;
10699 endlba1 = lba1 + len1 - 1;
10700 endlba2 = lba2 + len2 - 1;
10702 if ((endlba1 < lba2)
10703 || (endlba2 < lba1))
10704 return (CTL_ACTION_PASS);
10706 return (CTL_ACTION_BLOCK);
10710 ctl_extent_check(union ctl_io *io1, union ctl_io *io2)
10712 uint64_t lba1, lba2;
10713 uint32_t len1, len2;
10716 retval = ctl_get_lba_len(io1, &lba1, &len1);
10718 return (CTL_ACTION_ERROR);
10720 retval = ctl_get_lba_len(io2, &lba2, &len2);
10722 return (CTL_ACTION_ERROR);
10724 return (ctl_extent_check_lba(lba1, len1, lba2, len2));
10728 ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io)
10730 const struct ctl_cmd_entry *pending_entry, *ooa_entry;
10731 ctl_serialize_action *serialize_row;
10734 * The initiator attempted multiple untagged commands at the same
10735 * time. Can't do that.
10737 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED)
10738 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED)
10739 && ((pending_io->io_hdr.nexus.targ_port ==
10740 ooa_io->io_hdr.nexus.targ_port)
10741 && (pending_io->io_hdr.nexus.initid.id ==
10742 ooa_io->io_hdr.nexus.initid.id))
10743 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0))
10744 return (CTL_ACTION_OVERLAP);
10747 * The initiator attempted to send multiple tagged commands with
10748 * the same ID. (It's fine if different initiators have the same
10751 * Even if all of those conditions are true, we don't kill the I/O
10752 * if the command ahead of us has been aborted. We won't end up
10753 * sending it to the FETD, and it's perfectly legal to resend a
10754 * command with the same tag number as long as the previous
10755 * instance of this tag number has been aborted somehow.
10757 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED)
10758 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED)
10759 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num)
10760 && ((pending_io->io_hdr.nexus.targ_port ==
10761 ooa_io->io_hdr.nexus.targ_port)
10762 && (pending_io->io_hdr.nexus.initid.id ==
10763 ooa_io->io_hdr.nexus.initid.id))
10764 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0))
10765 return (CTL_ACTION_OVERLAP_TAG);
10768 * If we get a head of queue tag, SAM-3 says that we should
10769 * immediately execute it.
10771 * What happens if this command would normally block for some other
10772 * reason? e.g. a request sense with a head of queue tag
10773 * immediately after a write. Normally that would block, but this
10774 * will result in its getting executed immediately...
10776 * We currently return "pass" instead of "skip", so we'll end up
10777 * going through the rest of the queue to check for overlapped tags.
10779 * XXX KDM check for other types of blockage first??
10781 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE)
10782 return (CTL_ACTION_PASS);
10785 * Ordered tags have to block until all items ahead of them
10786 * have completed. If we get called with an ordered tag, we always
10787 * block, if something else is ahead of us in the queue.
10789 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED)
10790 return (CTL_ACTION_BLOCK);
10793 * Simple tags get blocked until all head of queue and ordered tags
10794 * ahead of them have completed. I'm lumping untagged commands in
10795 * with simple tags here. XXX KDM is that the right thing to do?
10797 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED)
10798 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE))
10799 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE)
10800 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED)))
10801 return (CTL_ACTION_BLOCK);
10803 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio);
10804 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio);
10806 serialize_row = ctl_serialize_table[ooa_entry->seridx];
10808 switch (serialize_row[pending_entry->seridx]) {
10809 case CTL_SER_BLOCK:
10810 return (CTL_ACTION_BLOCK);
10811 break; /* NOTREACHED */
10812 case CTL_SER_EXTENT:
10813 return (ctl_extent_check(pending_io, ooa_io));
10814 break; /* NOTREACHED */
10816 return (CTL_ACTION_PASS);
10817 break; /* NOTREACHED */
10819 return (CTL_ACTION_SKIP);
10822 panic("invalid serialization value %d",
10823 serialize_row[pending_entry->seridx]);
10824 break; /* NOTREACHED */
10827 return (CTL_ACTION_ERROR);
10831 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue.
10833 * - pending_io is generally either incoming, or on the blocked queue
10834 * - starting I/O is the I/O we want to start the check with.
10837 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io,
10838 union ctl_io *starting_io)
10840 union ctl_io *ooa_io;
10843 mtx_assert(&lun->lun_lock, MA_OWNED);
10846 * Run back along the OOA queue, starting with the current
10847 * blocked I/O and going through every I/O before it on the
10848 * queue. If starting_io is NULL, we'll just end up returning
10851 for (ooa_io = starting_io; ooa_io != NULL;
10852 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq,
10856 * This routine just checks to see whether
10857 * cur_blocked is blocked by ooa_io, which is ahead
10858 * of it in the queue. It doesn't queue/dequeue
10861 action = ctl_check_for_blockage(pending_io, ooa_io);
10863 case CTL_ACTION_BLOCK:
10864 case CTL_ACTION_OVERLAP:
10865 case CTL_ACTION_OVERLAP_TAG:
10866 case CTL_ACTION_SKIP:
10867 case CTL_ACTION_ERROR:
10869 break; /* NOTREACHED */
10870 case CTL_ACTION_PASS:
10873 panic("invalid action %d", action);
10874 break; /* NOTREACHED */
10878 return (CTL_ACTION_PASS);
10883 * - An I/O has just completed, and has been removed from the per-LUN OOA
10884 * queue, so some items on the blocked queue may now be unblocked.
10887 ctl_check_blocked(struct ctl_lun *lun)
10889 union ctl_io *cur_blocked, *next_blocked;
10891 mtx_assert(&lun->lun_lock, MA_OWNED);
10894 * Run forward from the head of the blocked queue, checking each
10895 * entry against the I/Os prior to it on the OOA queue to see if
10896 * there is still any blockage.
10898 * We cannot use the TAILQ_FOREACH() macro, because it can't deal
10899 * with our removing a variable on it while it is traversing the
10902 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue);
10903 cur_blocked != NULL; cur_blocked = next_blocked) {
10904 union ctl_io *prev_ooa;
10907 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr,
10910 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr,
10911 ctl_ooaq, ooa_links);
10914 * If cur_blocked happens to be the first item in the OOA
10915 * queue now, prev_ooa will be NULL, and the action
10916 * returned will just be CTL_ACTION_PASS.
10918 action = ctl_check_ooa(lun, cur_blocked, prev_ooa);
10921 case CTL_ACTION_BLOCK:
10922 /* Nothing to do here, still blocked */
10924 case CTL_ACTION_OVERLAP:
10925 case CTL_ACTION_OVERLAP_TAG:
10927 * This shouldn't happen! In theory we've already
10928 * checked this command for overlap...
10931 case CTL_ACTION_PASS:
10932 case CTL_ACTION_SKIP: {
10933 struct ctl_softc *softc;
10934 const struct ctl_cmd_entry *entry;
10939 * The skip case shouldn't happen, this transaction
10940 * should have never made it onto the blocked queue.
10943 * This I/O is no longer blocked, we can remove it
10944 * from the blocked queue. Since this is a TAILQ
10945 * (doubly linked list), we can do O(1) removals
10946 * from any place on the list.
10948 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr,
10950 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED;
10952 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){
10954 * Need to send IO back to original side to
10957 union ctl_ha_msg msg_info;
10959 msg_info.hdr.original_sc =
10960 cur_blocked->io_hdr.original_sc;
10961 msg_info.hdr.serializing_sc = cur_blocked;
10962 msg_info.hdr.msg_type = CTL_MSG_R2R;
10963 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
10964 &msg_info, sizeof(msg_info), 0)) >
10965 CTL_HA_STATUS_SUCCESS) {
10966 printf("CTL:Check Blocked error from "
10967 "ctl_ha_msg_send %d\n",
10972 entry = ctl_get_cmd_entry(&cur_blocked->scsiio);
10973 softc = control_softc;
10975 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus);
10978 * Check this I/O for LUN state changes that may
10979 * have happened while this command was blocked.
10980 * The LUN state may have been changed by a command
10981 * ahead of us in the queue, so we need to re-check
10982 * for any states that can be caused by SCSI
10985 if (ctl_scsiio_lun_check(softc, lun, entry,
10986 &cur_blocked->scsiio) == 0) {
10987 cur_blocked->io_hdr.flags |=
10988 CTL_FLAG_IS_WAS_ON_RTR;
10989 ctl_enqueue_rtr(cur_blocked);
10991 ctl_done(cur_blocked);
10996 * This probably shouldn't happen -- we shouldn't
10997 * get CTL_ACTION_ERROR, or anything else.
11003 return (CTL_RETVAL_COMPLETE);
11007 * This routine (with one exception) checks LUN flags that can be set by
11008 * commands ahead of us in the OOA queue. These flags have to be checked
11009 * when a command initially comes in, and when we pull a command off the
11010 * blocked queue and are preparing to execute it. The reason we have to
11011 * check these flags for commands on the blocked queue is that the LUN
11012 * state may have been changed by a command ahead of us while we're on the
11015 * Ordering is somewhat important with these checks, so please pay
11016 * careful attention to the placement of any new checks.
11019 ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun,
11020 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio)
11026 mtx_assert(&lun->lun_lock, MA_OWNED);
11029 * If this shelf is a secondary shelf controller, we have to reject
11030 * any media access commands.
11033 /* No longer needed for HA */
11034 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0)
11035 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) {
11036 ctl_set_lun_standby(ctsio);
11043 * Check for a reservation conflict. If this command isn't allowed
11044 * even on reserved LUNs, and if this initiator isn't the one who
11045 * reserved us, reject the command with a reservation conflict.
11047 if ((lun->flags & CTL_LUN_RESERVED)
11048 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) {
11049 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id)
11050 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port)
11051 || (ctsio->io_hdr.nexus.targ_target.id !=
11052 lun->rsv_nexus.targ_target.id)) {
11053 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT;
11054 ctsio->io_hdr.status = CTL_SCSI_ERROR;
11060 if ( (lun->flags & CTL_LUN_PR_RESERVED)
11061 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) {
11064 residx = ctl_get_resindex(&ctsio->io_hdr.nexus);
11066 * if we aren't registered or it's a res holder type
11067 * reservation and this isn't the res holder then set a
11069 * NOTE: Commands which might be allowed on write exclusive
11070 * type reservations are checked in the particular command
11071 * for a conflict. Read and SSU are the only ones.
11073 if (!lun->per_res[residx].registered
11074 || (residx != lun->pr_res_idx && lun->res_type < 4)) {
11075 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT;
11076 ctsio->io_hdr.status = CTL_SCSI_ERROR;
11083 if ((lun->flags & CTL_LUN_OFFLINE)
11084 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) {
11085 ctl_set_lun_not_ready(ctsio);
11091 * If the LUN is stopped, see if this particular command is allowed
11092 * for a stopped lun. Otherwise, reject it with 0x04,0x02.
11094 if ((lun->flags & CTL_LUN_STOPPED)
11095 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) {
11096 /* "Logical unit not ready, initializing cmd. required" */
11097 ctl_set_lun_stopped(ctsio);
11102 if ((lun->flags & CTL_LUN_INOPERABLE)
11103 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) {
11104 /* "Medium format corrupted" */
11105 ctl_set_medium_format_corrupted(ctsio);
11116 ctl_failover_io(union ctl_io *io, int have_lock)
11118 ctl_set_busy(&io->scsiio);
11125 struct ctl_lun *lun;
11126 struct ctl_softc *ctl_softc;
11127 union ctl_io *next_io, *pending_io;
11132 ctl_softc = control_softc;
11134 mtx_lock(&ctl_softc->ctl_lock);
11136 * Remove any cmds from the other SC from the rtr queue. These
11137 * will obviously only be for LUNs for which we're the primary.
11138 * We can't send status or get/send data for these commands.
11139 * Since they haven't been executed yet, we can just remove them.
11140 * We'll either abort them or delete them below, depending on
11141 * which HA mode we're in.
11144 mtx_lock(&ctl_softc->queue_lock);
11145 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue);
11146 io != NULL; io = next_io) {
11147 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links);
11148 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)
11149 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr,
11150 ctl_io_hdr, links);
11152 mtx_unlock(&ctl_softc->queue_lock);
11155 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) {
11156 lun = ctl_softc->ctl_luns[lun_idx];
11161 * Processor LUNs are primary on both sides.
11162 * XXX will this always be true?
11164 if (lun->be_lun->lun_type == T_PROCESSOR)
11167 if ((lun->flags & CTL_LUN_PRIMARY_SC)
11168 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) {
11169 printf("FAILOVER: primary lun %d\n", lun_idx);
11171 * Remove all commands from the other SC. First from the
11172 * blocked queue then from the ooa queue. Once we have
11173 * removed them. Call ctl_check_blocked to see if there
11174 * is anything that can run.
11176 for (io = (union ctl_io *)TAILQ_FIRST(
11177 &lun->blocked_queue); io != NULL; io = next_io) {
11179 next_io = (union ctl_io *)TAILQ_NEXT(
11180 &io->io_hdr, blocked_links);
11182 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) {
11183 TAILQ_REMOVE(&lun->blocked_queue,
11184 &io->io_hdr,blocked_links);
11185 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED;
11186 TAILQ_REMOVE(&lun->ooa_queue,
11187 &io->io_hdr, ooa_links);
11193 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue);
11194 io != NULL; io = next_io) {
11196 next_io = (union ctl_io *)TAILQ_NEXT(
11197 &io->io_hdr, ooa_links);
11199 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) {
11201 TAILQ_REMOVE(&lun->ooa_queue,
11208 ctl_check_blocked(lun);
11209 } else if ((lun->flags & CTL_LUN_PRIMARY_SC)
11210 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) {
11212 printf("FAILOVER: primary lun %d\n", lun_idx);
11214 * Abort all commands from the other SC. We can't
11215 * send status back for them now. These should get
11216 * cleaned up when they are completed or come out
11217 * for a datamove operation.
11219 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue);
11220 io != NULL; io = next_io) {
11221 next_io = (union ctl_io *)TAILQ_NEXT(
11222 &io->io_hdr, ooa_links);
11224 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)
11225 io->io_hdr.flags |= CTL_FLAG_ABORT;
11227 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0)
11228 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) {
11230 printf("FAILOVER: secondary lun %d\n", lun_idx);
11232 lun->flags |= CTL_LUN_PRIMARY_SC;
11235 * We send all I/O that was sent to this controller
11236 * and redirected to the other side back with
11237 * busy status, and have the initiator retry it.
11238 * Figuring out how much data has been transferred,
11239 * etc. and picking up where we left off would be
11242 * XXX KDM need to remove I/O from the blocked
11245 for (pending_io = (union ctl_io *)TAILQ_FIRST(
11246 &lun->ooa_queue); pending_io != NULL;
11247 pending_io = next_io) {
11249 next_io = (union ctl_io *)TAILQ_NEXT(
11250 &pending_io->io_hdr, ooa_links);
11252 pending_io->io_hdr.flags &=
11253 ~CTL_FLAG_SENT_2OTHER_SC;
11255 if (pending_io->io_hdr.flags &
11256 CTL_FLAG_IO_ACTIVE) {
11257 pending_io->io_hdr.flags |=
11260 ctl_set_busy(&pending_io->scsiio);
11261 ctl_done(pending_io);
11266 * Build Unit Attention
11268 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
11269 lun->pending_sense[i].ua_pending |=
11270 CTL_UA_ASYM_ACC_CHANGE;
11272 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0)
11273 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) {
11274 printf("FAILOVER: secondary lun %d\n", lun_idx);
11276 * if the first io on the OOA is not on the RtR queue
11279 lun->flags |= CTL_LUN_PRIMARY_SC;
11281 pending_io = (union ctl_io *)TAILQ_FIRST(
11283 if (pending_io==NULL) {
11284 printf("Nothing on OOA queue\n");
11288 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC;
11289 if ((pending_io->io_hdr.flags &
11290 CTL_FLAG_IS_WAS_ON_RTR) == 0) {
11291 pending_io->io_hdr.flags |=
11292 CTL_FLAG_IS_WAS_ON_RTR;
11293 ctl_enqueue_rtr(pending_io);
11298 printf("Tag 0x%04x is running\n",
11299 pending_io->scsiio.tag_num);
11303 next_io = (union ctl_io *)TAILQ_NEXT(
11304 &pending_io->io_hdr, ooa_links);
11305 for (pending_io=next_io; pending_io != NULL;
11306 pending_io = next_io) {
11307 pending_io->io_hdr.flags &=
11308 ~CTL_FLAG_SENT_2OTHER_SC;
11309 next_io = (union ctl_io *)TAILQ_NEXT(
11310 &pending_io->io_hdr, ooa_links);
11311 if (pending_io->io_hdr.flags &
11312 CTL_FLAG_IS_WAS_ON_RTR) {
11314 printf("Tag 0x%04x is running\n",
11315 pending_io->scsiio.tag_num);
11320 switch (ctl_check_ooa(lun, pending_io,
11321 (union ctl_io *)TAILQ_PREV(
11322 &pending_io->io_hdr, ctl_ooaq,
11325 case CTL_ACTION_BLOCK:
11326 TAILQ_INSERT_TAIL(&lun->blocked_queue,
11327 &pending_io->io_hdr,
11329 pending_io->io_hdr.flags |=
11332 case CTL_ACTION_PASS:
11333 case CTL_ACTION_SKIP:
11334 pending_io->io_hdr.flags |=
11335 CTL_FLAG_IS_WAS_ON_RTR;
11336 ctl_enqueue_rtr(pending_io);
11338 case CTL_ACTION_OVERLAP:
11339 ctl_set_overlapped_cmd(
11340 (struct ctl_scsiio *)pending_io);
11341 ctl_done(pending_io);
11343 case CTL_ACTION_OVERLAP_TAG:
11344 ctl_set_overlapped_tag(
11345 (struct ctl_scsiio *)pending_io,
11346 pending_io->scsiio.tag_num & 0xff);
11347 ctl_done(pending_io);
11349 case CTL_ACTION_ERROR:
11351 ctl_set_internal_failure(
11352 (struct ctl_scsiio *)pending_io,
11355 ctl_done(pending_io);
11361 * Build Unit Attention
11363 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
11364 lun->pending_sense[i].ua_pending |=
11365 CTL_UA_ASYM_ACC_CHANGE;
11368 panic("Unhandled HA mode failover, LUN flags = %#x, "
11369 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode);
11373 mtx_unlock(&ctl_softc->ctl_lock);
11377 ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio)
11379 struct ctl_lun *lun;
11380 const struct ctl_cmd_entry *entry;
11381 uint32_t initidx, targ_lun;
11388 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun;
11389 if ((targ_lun < CTL_MAX_LUNS)
11390 && (ctl_softc->ctl_luns[targ_lun] != NULL)) {
11391 lun = ctl_softc->ctl_luns[targ_lun];
11393 * If the LUN is invalid, pretend that it doesn't exist.
11394 * It will go away as soon as all pending I/O has been
11397 if (lun->flags & CTL_LUN_DISABLED) {
11400 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun;
11401 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr =
11403 if (lun->be_lun->lun_type == T_PROCESSOR) {
11404 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV;
11408 * Every I/O goes into the OOA queue for a
11409 * particular LUN, and stays there until completion.
11411 mtx_lock(&lun->lun_lock);
11412 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr,
11416 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL;
11417 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL;
11420 /* Get command entry and return error if it is unsuppotyed. */
11421 entry = ctl_validate_command(ctsio);
11422 if (entry == NULL) {
11424 mtx_unlock(&lun->lun_lock);
11428 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK;
11429 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK;
11432 * Check to see whether we can send this command to LUNs that don't
11433 * exist. This should pretty much only be the case for inquiry
11434 * and request sense. Further checks, below, really require having
11435 * a LUN, so we can't really check the command anymore. Just put
11436 * it on the rtr queue.
11439 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) {
11440 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR;
11441 ctl_enqueue_rtr((union ctl_io *)ctsio);
11445 ctl_set_unsupported_lun(ctsio);
11446 ctl_done((union ctl_io *)ctsio);
11447 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n"));
11451 * Make sure we support this particular command on this LUN.
11452 * e.g., we don't support writes to the control LUN.
11454 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) {
11455 mtx_unlock(&lun->lun_lock);
11456 ctl_set_invalid_opcode(ctsio);
11457 ctl_done((union ctl_io *)ctsio);
11462 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus);
11465 * If we've got a request sense, it'll clear the contingent
11466 * allegiance condition. Otherwise, if we have a CA condition for
11467 * this initiator, clear it, because it sent down a command other
11468 * than request sense.
11470 if ((ctsio->cdb[0] != REQUEST_SENSE)
11471 && (ctl_is_set(lun->have_ca, initidx)))
11472 ctl_clear_mask(lun->have_ca, initidx);
11475 * If the command has this flag set, it handles its own unit
11476 * attention reporting, we shouldn't do anything. Otherwise we
11477 * check for any pending unit attentions, and send them back to the
11478 * initiator. We only do this when a command initially comes in,
11479 * not when we pull it off the blocked queue.
11481 * According to SAM-3, section 5.3.2, the order that things get
11482 * presented back to the host is basically unit attentions caused
11483 * by some sort of reset event, busy status, reservation conflicts
11484 * or task set full, and finally any other status.
11486 * One issue here is that some of the unit attentions we report
11487 * don't fall into the "reset" category (e.g. "reported luns data
11488 * has changed"). So reporting it here, before the reservation
11489 * check, may be technically wrong. I guess the only thing to do
11490 * would be to check for and report the reset events here, and then
11491 * check for the other unit attention types after we check for a
11492 * reservation conflict.
11494 * XXX KDM need to fix this
11496 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) {
11497 ctl_ua_type ua_type;
11499 ua_type = lun->pending_sense[initidx].ua_pending;
11500 if (ua_type != CTL_UA_NONE) {
11501 scsi_sense_data_type sense_format;
11504 sense_format = (lun->flags &
11505 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC :
11508 sense_format = SSD_TYPE_FIXED;
11510 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data,
11512 if (ua_type != CTL_UA_NONE) {
11513 ctsio->scsi_status = SCSI_STATUS_CHECK_COND;
11514 ctsio->io_hdr.status = CTL_SCSI_ERROR |
11516 ctsio->sense_len = SSD_FULL_SIZE;
11517 lun->pending_sense[initidx].ua_pending &=
11519 mtx_unlock(&lun->lun_lock);
11520 ctl_done((union ctl_io *)ctsio);
11527 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) {
11528 mtx_unlock(&lun->lun_lock);
11529 ctl_done((union ctl_io *)ctsio);
11534 * XXX CHD this is where we want to send IO to other side if
11535 * this LUN is secondary on this SC. We will need to make a copy
11536 * of the IO and flag the IO on this side as SENT_2OTHER and the flag
11537 * the copy we send as FROM_OTHER.
11538 * We also need to stuff the address of the original IO so we can
11539 * find it easily. Something similar will need be done on the other
11540 * side so when we are done we can find the copy.
11542 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) {
11543 union ctl_ha_msg msg_info;
11546 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC;
11548 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE;
11549 msg_info.hdr.original_sc = (union ctl_io *)ctsio;
11551 printf("1. ctsio %p\n", ctsio);
11553 msg_info.hdr.serializing_sc = NULL;
11554 msg_info.hdr.nexus = ctsio->io_hdr.nexus;
11555 msg_info.scsi.tag_num = ctsio->tag_num;
11556 msg_info.scsi.tag_type = ctsio->tag_type;
11557 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN);
11559 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE;
11561 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL,
11562 (void *)&msg_info, sizeof(msg_info), 0)) >
11563 CTL_HA_STATUS_SUCCESS) {
11564 printf("CTL:precheck, ctl_ha_msg_send returned %d\n",
11566 printf("CTL:opcode is %x\n", ctsio->cdb[0]);
11569 printf("CTL:Precheck sent msg, opcode is %x\n",opcode);
11574 * XXX KDM this I/O is off the incoming queue, but hasn't
11575 * been inserted on any other queue. We may need to come
11576 * up with a holding queue while we wait for serialization
11577 * so that we have an idea of what we're waiting for from
11580 mtx_unlock(&lun->lun_lock);
11584 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio,
11585 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr,
11586 ctl_ooaq, ooa_links))) {
11587 case CTL_ACTION_BLOCK:
11588 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED;
11589 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr,
11591 mtx_unlock(&lun->lun_lock);
11593 case CTL_ACTION_PASS:
11594 case CTL_ACTION_SKIP:
11595 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR;
11596 mtx_unlock(&lun->lun_lock);
11597 ctl_enqueue_rtr((union ctl_io *)ctsio);
11599 case CTL_ACTION_OVERLAP:
11600 mtx_unlock(&lun->lun_lock);
11601 ctl_set_overlapped_cmd(ctsio);
11602 ctl_done((union ctl_io *)ctsio);
11604 case CTL_ACTION_OVERLAP_TAG:
11605 mtx_unlock(&lun->lun_lock);
11606 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff);
11607 ctl_done((union ctl_io *)ctsio);
11609 case CTL_ACTION_ERROR:
11611 mtx_unlock(&lun->lun_lock);
11612 ctl_set_internal_failure(ctsio,
11614 /*retry_count*/ 0);
11615 ctl_done((union ctl_io *)ctsio);
11621 const struct ctl_cmd_entry *
11622 ctl_get_cmd_entry(struct ctl_scsiio *ctsio)
11624 const struct ctl_cmd_entry *entry;
11625 int service_action;
11627 entry = &ctl_cmd_table[ctsio->cdb[0]];
11628 if (entry->flags & CTL_CMD_FLAG_SA5) {
11629 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK;
11630 entry = &((const struct ctl_cmd_entry *)
11631 entry->execute)[service_action];
11636 const struct ctl_cmd_entry *
11637 ctl_validate_command(struct ctl_scsiio *ctsio)
11639 const struct ctl_cmd_entry *entry;
11643 entry = ctl_get_cmd_entry(ctsio);
11644 if (entry->execute == NULL) {
11645 ctl_set_invalid_opcode(ctsio);
11646 ctl_done((union ctl_io *)ctsio);
11649 KASSERT(entry->length > 0,
11650 ("Not defined length for command 0x%02x/0x%02x",
11651 ctsio->cdb[0], ctsio->cdb[1]));
11652 for (i = 1; i < entry->length; i++) {
11653 diff = ctsio->cdb[i] & ~entry->usage[i - 1];
11656 ctl_set_invalid_field(ctsio,
11661 /*bit*/ fls(diff) - 1);
11662 ctl_done((union ctl_io *)ctsio);
11669 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry)
11672 switch (lun_type) {
11674 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) &&
11675 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0))
11679 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) &&
11680 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0))
11690 ctl_scsiio(struct ctl_scsiio *ctsio)
11693 const struct ctl_cmd_entry *entry;
11695 retval = CTL_RETVAL_COMPLETE;
11697 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0]));
11699 entry = ctl_get_cmd_entry(ctsio);
11702 * If this I/O has been aborted, just send it straight to
11703 * ctl_done() without executing it.
11705 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) {
11706 ctl_done((union ctl_io *)ctsio);
11711 * All the checks should have been handled by ctl_scsiio_precheck().
11712 * We should be clear now to just execute the I/O.
11714 retval = entry->execute(ctsio);
11721 * Since we only implement one target right now, a bus reset simply resets
11722 * our single target.
11725 ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io)
11727 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET));
11731 ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io,
11732 ctl_ua_type ua_type)
11734 struct ctl_lun *lun;
11737 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) {
11738 union ctl_ha_msg msg_info;
11740 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC;
11741 msg_info.hdr.nexus = io->io_hdr.nexus;
11742 if (ua_type==CTL_UA_TARG_RESET)
11743 msg_info.task.task_action = CTL_TASK_TARGET_RESET;
11745 msg_info.task.task_action = CTL_TASK_BUS_RESET;
11746 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS;
11747 msg_info.hdr.original_sc = NULL;
11748 msg_info.hdr.serializing_sc = NULL;
11749 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL,
11750 (void *)&msg_info, sizeof(msg_info), 0)) {
11755 mtx_lock(&ctl_softc->ctl_lock);
11756 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links)
11757 retval += ctl_lun_reset(lun, io, ua_type);
11758 mtx_unlock(&ctl_softc->ctl_lock);
11764 * The LUN should always be set. The I/O is optional, and is used to
11765 * distinguish between I/Os sent by this initiator, and by other
11766 * initiators. We set unit attention for initiators other than this one.
11767 * SAM-3 is vague on this point. It does say that a unit attention should
11768 * be established for other initiators when a LUN is reset (see section
11769 * 5.7.3), but it doesn't specifically say that the unit attention should
11770 * be established for this particular initiator when a LUN is reset. Here
11771 * is the relevant text, from SAM-3 rev 8:
11773 * 5.7.2 When a SCSI initiator port aborts its own tasks
11775 * When a SCSI initiator port causes its own task(s) to be aborted, no
11776 * notification that the task(s) have been aborted shall be returned to
11777 * the SCSI initiator port other than the completion response for the
11778 * command or task management function action that caused the task(s) to
11779 * be aborted and notification(s) associated with related effects of the
11780 * action (e.g., a reset unit attention condition).
11782 * XXX KDM for now, we're setting unit attention for all initiators.
11785 ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type)
11789 uint32_t initindex;
11793 mtx_lock(&lun->lun_lock);
11795 * Run through the OOA queue and abort each I/O.
11798 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) {
11800 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL;
11801 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) {
11802 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS;
11806 * This version sets unit attention for every
11809 initindex = ctl_get_initindex(&io->io_hdr.nexus);
11810 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
11811 if (initindex == i)
11813 lun->pending_sense[i].ua_pending |= ua_type;
11818 * A reset (any kind, really) clears reservations established with
11819 * RESERVE/RELEASE. It does not clear reservations established
11820 * with PERSISTENT RESERVE OUT, but we don't support that at the
11821 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address
11822 * reservations made with the RESERVE/RELEASE commands, because
11823 * those commands are obsolete in SPC-3.
11825 lun->flags &= ~CTL_LUN_RESERVED;
11827 for (i = 0; i < CTL_MAX_INITIATORS; i++) {
11828 ctl_clear_mask(lun->have_ca, i);
11829 lun->pending_sense[i].ua_pending |= ua_type;
11831 mtx_unlock(&lun->lun_lock);
11837 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id,
11843 mtx_assert(&lun->lun_lock, MA_OWNED);
11846 * Run through the OOA queue and attempt to find the given I/O.
11847 * The target port, initiator ID, tag type and tag number have to
11848 * match the values that we got from the initiator. If we have an
11849 * untagged command to abort, simply abort the first untagged command
11850 * we come to. We only allow one untagged command at a time of course.
11852 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL;
11853 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) {
11855 if ((targ_port == UINT32_MAX ||
11856 targ_port == xio->io_hdr.nexus.targ_port) &&
11857 (init_id == UINT32_MAX ||
11858 init_id == xio->io_hdr.nexus.initid.id)) {
11859 if (targ_port != xio->io_hdr.nexus.targ_port ||
11860 init_id != xio->io_hdr.nexus.initid.id)
11861 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS;
11862 xio->io_hdr.flags |= CTL_FLAG_ABORT;
11864 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) {
11865 union ctl_ha_msg msg_info;
11867 msg_info.hdr.nexus = xio->io_hdr.nexus;
11868 msg_info.task.task_action = CTL_TASK_ABORT_TASK;
11869 msg_info.task.tag_num = xio->scsiio.tag_num;
11870 msg_info.task.tag_type = xio->scsiio.tag_type;
11871 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS;
11872 msg_info.hdr.original_sc = NULL;
11873 msg_info.hdr.serializing_sc = NULL;
11874 ctl_ha_msg_send(CTL_HA_CHAN_CTL,
11875 (void *)&msg_info, sizeof(msg_info), 0);
11883 ctl_abort_task_set(union ctl_io *io)
11885 struct ctl_softc *softc = control_softc;
11886 struct ctl_lun *lun;
11892 targ_lun = io->io_hdr.nexus.targ_mapped_lun;
11893 mtx_lock(&softc->ctl_lock);
11894 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL))
11895 lun = softc->ctl_luns[targ_lun];
11897 mtx_unlock(&softc->ctl_lock);
11901 mtx_lock(&lun->lun_lock);
11902 mtx_unlock(&softc->ctl_lock);
11903 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) {
11904 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port,
11905 io->io_hdr.nexus.initid.id,
11906 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0);
11907 } else { /* CTL_TASK_CLEAR_TASK_SET */
11908 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX,
11909 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0);
11911 mtx_unlock(&lun->lun_lock);
11916 ctl_i_t_nexus_reset(union ctl_io *io)
11918 struct ctl_softc *softc = control_softc;
11919 struct ctl_lun *lun;
11920 uint32_t initindex;
11922 initindex = ctl_get_initindex(&io->io_hdr.nexus);
11923 mtx_lock(&softc->ctl_lock);
11924 STAILQ_FOREACH(lun, &softc->lun_list, links) {
11925 mtx_lock(&lun->lun_lock);
11926 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port,
11927 io->io_hdr.nexus.initid.id,
11928 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0);
11929 ctl_clear_mask(lun->have_ca, initindex);
11930 lun->pending_sense[initindex].ua_pending |= CTL_UA_I_T_NEXUS_LOSS;
11931 mtx_unlock(&lun->lun_lock);
11933 mtx_unlock(&softc->ctl_lock);
11938 ctl_abort_task(union ctl_io *io)
11941 struct ctl_lun *lun;
11942 struct ctl_softc *ctl_softc;
11945 char printbuf[128];
11950 ctl_softc = control_softc;
11956 targ_lun = io->io_hdr.nexus.targ_mapped_lun;
11957 mtx_lock(&ctl_softc->ctl_lock);
11958 if ((targ_lun < CTL_MAX_LUNS)
11959 && (ctl_softc->ctl_luns[targ_lun] != NULL))
11960 lun = ctl_softc->ctl_luns[targ_lun];
11962 mtx_unlock(&ctl_softc->ctl_lock);
11967 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n",
11968 lun->lun, io->taskio.tag_num, io->taskio.tag_type);
11971 mtx_lock(&lun->lun_lock);
11972 mtx_unlock(&ctl_softc->ctl_lock);
11974 * Run through the OOA queue and attempt to find the given I/O.
11975 * The target port, initiator ID, tag type and tag number have to
11976 * match the values that we got from the initiator. If we have an
11977 * untagged command to abort, simply abort the first untagged command
11978 * we come to. We only allow one untagged command at a time of course.
11981 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) {
11983 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL;
11984 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) {
11986 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN);
11988 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ",
11989 lun->lun, xio->scsiio.tag_num,
11990 xio->scsiio.tag_type,
11991 (xio->io_hdr.blocked_links.tqe_prev
11992 == NULL) ? "" : " BLOCKED",
11993 (xio->io_hdr.flags &
11994 CTL_FLAG_DMA_INPROG) ? " DMA" : "",
11995 (xio->io_hdr.flags &
11996 CTL_FLAG_ABORT) ? " ABORT" : "",
11997 (xio->io_hdr.flags &
11998 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : ""));
11999 ctl_scsi_command_string(&xio->scsiio, NULL, &sb);
12001 printf("%s\n", sbuf_data(&sb));
12004 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port)
12005 && (xio->io_hdr.nexus.initid.id ==
12006 io->io_hdr.nexus.initid.id)) {
12008 * If the abort says that the task is untagged, the
12009 * task in the queue must be untagged. Otherwise,
12010 * we just check to see whether the tag numbers
12011 * match. This is because the QLogic firmware
12012 * doesn't pass back the tag type in an abort
12016 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED)
12017 && (io->taskio.tag_type == CTL_TAG_UNTAGGED))
12018 || (xio->scsiio.tag_num == io->taskio.tag_num)) {
12021 * XXX KDM we've got problems with FC, because it
12022 * doesn't send down a tag type with aborts. So we
12023 * can only really go by the tag number...
12024 * This may cause problems with parallel SCSI.
12025 * Need to figure that out!!
12027 if (xio->scsiio.tag_num == io->taskio.tag_num) {
12028 xio->io_hdr.flags |= CTL_FLAG_ABORT;
12030 if ((io->io_hdr.flags &
12031 CTL_FLAG_FROM_OTHER_SC) == 0 &&
12032 !(lun->flags & CTL_LUN_PRIMARY_SC)) {
12033 union ctl_ha_msg msg_info;
12035 io->io_hdr.flags |=
12036 CTL_FLAG_SENT_2OTHER_SC;
12037 msg_info.hdr.nexus = io->io_hdr.nexus;
12038 msg_info.task.task_action =
12039 CTL_TASK_ABORT_TASK;
12040 msg_info.task.tag_num =
12041 io->taskio.tag_num;
12042 msg_info.task.tag_type =
12043 io->taskio.tag_type;
12044 msg_info.hdr.msg_type =
12045 CTL_MSG_MANAGE_TASKS;
12046 msg_info.hdr.original_sc = NULL;
12047 msg_info.hdr.serializing_sc = NULL;
12049 printf("Sent Abort to other side\n");
12051 if (CTL_HA_STATUS_SUCCESS !=
12052 ctl_ha_msg_send(CTL_HA_CHAN_CTL,
12054 sizeof(msg_info), 0)) {
12058 printf("ctl_abort_task: found I/O to abort\n");
12064 mtx_unlock(&lun->lun_lock);
12068 * This isn't really an error. It's entirely possible for
12069 * the abort and command completion to cross on the wire.
12070 * This is more of an informative/diagnostic error.
12073 printf("ctl_abort_task: ABORT sent for nonexistent I/O: "
12074 "%d:%d:%d:%d tag %d type %d\n",
12075 io->io_hdr.nexus.initid.id,
12076 io->io_hdr.nexus.targ_port,
12077 io->io_hdr.nexus.targ_target.id,
12078 io->io_hdr.nexus.targ_lun, io->taskio.tag_num,
12079 io->taskio.tag_type);
12086 ctl_run_task(union ctl_io *io)
12088 struct ctl_softc *ctl_softc = control_softc;
12090 const char *task_desc;
12092 CTL_DEBUG_PRINT(("ctl_run_task\n"));
12094 KASSERT(io->io_hdr.io_type == CTL_IO_TASK,
12095 ("ctl_run_task: Unextected io_type %d\n",
12096 io->io_hdr.io_type));
12098 task_desc = ctl_scsi_task_string(&io->taskio);
12099 if (task_desc != NULL) {
12101 csevent_log(CSC_CTL | CSC_SHELF_SW |
12103 csevent_LogType_Trace,
12104 csevent_Severity_Information,
12105 csevent_AlertLevel_Green,
12106 csevent_FRU_Firmware,
12107 csevent_FRU_Unknown,
12108 "CTL: received task: %s",task_desc);
12112 csevent_log(CSC_CTL | CSC_SHELF_SW |
12114 csevent_LogType_Trace,
12115 csevent_Severity_Information,
12116 csevent_AlertLevel_Green,
12117 csevent_FRU_Firmware,
12118 csevent_FRU_Unknown,
12119 "CTL: received unknown task "
12121 io->taskio.task_action,
12122 io->taskio.task_action);
12125 switch (io->taskio.task_action) {
12126 case CTL_TASK_ABORT_TASK:
12127 retval = ctl_abort_task(io);
12129 case CTL_TASK_ABORT_TASK_SET:
12130 case CTL_TASK_CLEAR_TASK_SET:
12131 retval = ctl_abort_task_set(io);
12133 case CTL_TASK_CLEAR_ACA:
12135 case CTL_TASK_I_T_NEXUS_RESET:
12136 retval = ctl_i_t_nexus_reset(io);
12138 case CTL_TASK_LUN_RESET: {
12139 struct ctl_lun *lun;
12142 targ_lun = io->io_hdr.nexus.targ_mapped_lun;
12143 mtx_lock(&ctl_softc->ctl_lock);
12144 if ((targ_lun < CTL_MAX_LUNS)
12145 && (ctl_softc->ctl_luns[targ_lun] != NULL))
12146 lun = ctl_softc->ctl_luns[targ_lun];
12148 mtx_unlock(&ctl_softc->ctl_lock);
12153 if (!(io->io_hdr.flags &
12154 CTL_FLAG_FROM_OTHER_SC)) {
12155 union ctl_ha_msg msg_info;
12157 io->io_hdr.flags |=
12158 CTL_FLAG_SENT_2OTHER_SC;
12159 msg_info.hdr.msg_type =
12160 CTL_MSG_MANAGE_TASKS;
12161 msg_info.hdr.nexus = io->io_hdr.nexus;
12162 msg_info.task.task_action =
12163 CTL_TASK_LUN_RESET;
12164 msg_info.hdr.original_sc = NULL;
12165 msg_info.hdr.serializing_sc = NULL;
12166 if (CTL_HA_STATUS_SUCCESS !=
12167 ctl_ha_msg_send(CTL_HA_CHAN_CTL,
12169 sizeof(msg_info), 0)) {
12173 retval = ctl_lun_reset(lun, io,
12175 mtx_unlock(&ctl_softc->ctl_lock);
12178 case CTL_TASK_TARGET_RESET:
12179 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET);
12181 case CTL_TASK_BUS_RESET:
12182 retval = ctl_bus_reset(ctl_softc, io);
12184 case CTL_TASK_PORT_LOGIN:
12186 case CTL_TASK_PORT_LOGOUT:
12189 printf("ctl_run_task: got unknown task management event %d\n",
12190 io->taskio.task_action);
12194 io->io_hdr.status = CTL_SUCCESS;
12196 io->io_hdr.status = CTL_ERROR;
12201 * For HA operation. Handle commands that come in from the other
12205 ctl_handle_isc(union ctl_io *io)
12208 struct ctl_lun *lun;
12209 struct ctl_softc *ctl_softc;
12212 ctl_softc = control_softc;
12214 targ_lun = io->io_hdr.nexus.targ_mapped_lun;
12215 lun = ctl_softc->ctl_luns[targ_lun];
12217 switch (io->io_hdr.msg_type) {
12218 case CTL_MSG_SERIALIZE:
12219 free_io = ctl_serialize_other_sc_cmd(&io->scsiio);
12221 case CTL_MSG_R2R: {
12222 const struct ctl_cmd_entry *entry;
12225 * This is only used in SER_ONLY mode.
12228 entry = ctl_get_cmd_entry(&io->scsiio);
12229 mtx_lock(&lun->lun_lock);
12230 if (ctl_scsiio_lun_check(ctl_softc, lun,
12231 entry, (struct ctl_scsiio *)io) != 0) {
12232 mtx_unlock(&lun->lun_lock);
12236 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR;
12237 mtx_unlock(&lun->lun_lock);
12238 ctl_enqueue_rtr(io);
12241 case CTL_MSG_FINISH_IO:
12242 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) {
12247 mtx_lock(&lun->lun_lock);
12248 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr,
12250 ctl_check_blocked(lun);
12251 mtx_unlock(&lun->lun_lock);
12254 case CTL_MSG_PERS_ACTION:
12255 ctl_hndl_per_res_out_on_other_sc(
12256 (union ctl_ha_msg *)&io->presio.pr_msg);
12259 case CTL_MSG_BAD_JUJU:
12263 case CTL_MSG_DATAMOVE:
12264 /* Only used in XFER mode */
12266 ctl_datamove_remote(io);
12268 case CTL_MSG_DATAMOVE_DONE:
12269 /* Only used in XFER mode */
12271 io->scsiio.be_move_done(io);
12275 printf("%s: Invalid message type %d\n",
12276 __func__, io->io_hdr.msg_type);
12286 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if
12287 * there is no match.
12289 static ctl_lun_error_pattern
12290 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc)
12292 const struct ctl_cmd_entry *entry;
12293 ctl_lun_error_pattern filtered_pattern, pattern;
12295 pattern = desc->error_pattern;
12298 * XXX KDM we need more data passed into this function to match a
12299 * custom pattern, and we actually need to implement custom pattern
12302 if (pattern & CTL_LUN_PAT_CMD)
12303 return (CTL_LUN_PAT_CMD);
12305 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY)
12306 return (CTL_LUN_PAT_ANY);
12308 entry = ctl_get_cmd_entry(ctsio);
12310 filtered_pattern = entry->pattern & pattern;
12313 * If the user requested specific flags in the pattern (e.g.
12314 * CTL_LUN_PAT_RANGE), make sure the command supports all of those
12317 * If the user did not specify any flags, it doesn't matter whether
12318 * or not the command supports the flags.
12320 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) !=
12321 (pattern & ~CTL_LUN_PAT_MASK))
12322 return (CTL_LUN_PAT_NONE);
12325 * If the user asked for a range check, see if the requested LBA
12326 * range overlaps with this command's LBA range.
12328 if (filtered_pattern & CTL_LUN_PAT_RANGE) {
12334 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1);
12336 return (CTL_LUN_PAT_NONE);
12338 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba,
12339 desc->lba_range.len);
12341 * A "pass" means that the LBA ranges don't overlap, so
12342 * this doesn't match the user's range criteria.
12344 if (action == CTL_ACTION_PASS)
12345 return (CTL_LUN_PAT_NONE);
12348 return (filtered_pattern);
12352 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io)
12354 struct ctl_error_desc *desc, *desc2;
12356 mtx_assert(&lun->lun_lock, MA_OWNED);
12358 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) {
12359 ctl_lun_error_pattern pattern;
12361 * Check to see whether this particular command matches
12362 * the pattern in the descriptor.
12364 pattern = ctl_cmd_pattern_match(&io->scsiio, desc);
12365 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE)
12368 switch (desc->lun_error & CTL_LUN_INJ_TYPE) {
12369 case CTL_LUN_INJ_ABORTED:
12370 ctl_set_aborted(&io->scsiio);
12372 case CTL_LUN_INJ_MEDIUM_ERR:
12373 ctl_set_medium_error(&io->scsiio);
12375 case CTL_LUN_INJ_UA:
12376 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET
12378 ctl_set_ua(&io->scsiio, 0x29, 0x00);
12380 case CTL_LUN_INJ_CUSTOM:
12382 * We're assuming the user knows what he is doing.
12383 * Just copy the sense information without doing
12386 bcopy(&desc->custom_sense, &io->scsiio.sense_data,
12387 ctl_min(sizeof(desc->custom_sense),
12388 sizeof(io->scsiio.sense_data)));
12389 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND;
12390 io->scsiio.sense_len = SSD_FULL_SIZE;
12391 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE;
12393 case CTL_LUN_INJ_NONE:
12396 * If this is an error injection type we don't know
12397 * about, clear the continuous flag (if it is set)
12398 * so it will get deleted below.
12400 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS;
12404 * By default, each error injection action is a one-shot
12406 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS)
12409 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links);
12415 #ifdef CTL_IO_DELAY
12417 ctl_datamove_timer_wakeup(void *arg)
12421 io = (union ctl_io *)arg;
12425 #endif /* CTL_IO_DELAY */
12428 ctl_datamove(union ctl_io *io)
12430 void (*fe_datamove)(union ctl_io *io);
12432 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED);
12434 CTL_DEBUG_PRINT(("ctl_datamove\n"));
12437 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) {
12442 ctl_scsi_path_string(io, path_str, sizeof(path_str));
12443 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN);
12445 sbuf_cat(&sb, path_str);
12446 switch (io->io_hdr.io_type) {
12448 ctl_scsi_command_string(&io->scsiio, NULL, &sb);
12449 sbuf_printf(&sb, "\n");
12450 sbuf_cat(&sb, path_str);
12451 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n",
12452 io->scsiio.tag_num, io->scsiio.tag_type);
12455 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, "
12456 "Tag Type: %d\n", io->taskio.task_action,
12457 io->taskio.tag_num, io->taskio.tag_type);
12460 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type);
12461 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type);
12464 sbuf_cat(&sb, path_str);
12465 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n",
12466 (intmax_t)time_uptime - io->io_hdr.start_time);
12468 printf("%s", sbuf_data(&sb));
12470 #endif /* CTL_TIME_IO */
12472 #ifdef CTL_IO_DELAY
12473 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) {
12474 struct ctl_lun *lun;
12476 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
12478 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE;
12480 struct ctl_lun *lun;
12482 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
12484 && (lun->delay_info.datamove_delay > 0)) {
12485 struct callout *callout;
12487 callout = (struct callout *)&io->io_hdr.timer_bytes;
12488 callout_init(callout, /*mpsafe*/ 1);
12489 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE;
12490 callout_reset(callout,
12491 lun->delay_info.datamove_delay * hz,
12492 ctl_datamove_timer_wakeup, io);
12493 if (lun->delay_info.datamove_type ==
12494 CTL_DELAY_TYPE_ONESHOT)
12495 lun->delay_info.datamove_delay = 0;
12502 * This command has been aborted. Set the port status, so we fail
12505 if (io->io_hdr.flags & CTL_FLAG_ABORT) {
12506 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n",
12507 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id,
12508 io->io_hdr.nexus.targ_port,
12509 (uintmax_t)io->io_hdr.nexus.targ_target.id,
12510 io->io_hdr.nexus.targ_lun);
12511 io->io_hdr.status = CTL_CMD_ABORTED;
12512 io->io_hdr.port_status = 31337;
12514 * Note that the backend, in this case, will get the
12515 * callback in its context. In other cases it may get
12516 * called in the frontend's interrupt thread context.
12518 io->scsiio.be_move_done(io);
12523 * If we're in XFER mode and this I/O is from the other shelf
12524 * controller, we need to send the DMA to the other side to
12525 * actually transfer the data to/from the host. In serialize only
12526 * mode the transfer happens below CTL and ctl_datamove() is only
12527 * called on the machine that originally received the I/O.
12529 if ((control_softc->ha_mode == CTL_HA_MODE_XFER)
12530 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) {
12531 union ctl_ha_msg msg;
12532 uint32_t sg_entries_sent;
12536 memset(&msg, 0, sizeof(msg));
12537 msg.hdr.msg_type = CTL_MSG_DATAMOVE;
12538 msg.hdr.original_sc = io->io_hdr.original_sc;
12539 msg.hdr.serializing_sc = io;
12540 msg.hdr.nexus = io->io_hdr.nexus;
12541 msg.dt.flags = io->io_hdr.flags;
12543 * We convert everything into a S/G list here. We can't
12544 * pass by reference, only by value between controllers.
12545 * So we can't pass a pointer to the S/G list, only as many
12546 * S/G entries as we can fit in here. If it's possible for
12547 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries,
12548 * then we need to break this up into multiple transfers.
12550 if (io->scsiio.kern_sg_entries == 0) {
12551 msg.dt.kern_sg_entries = 1;
12553 * If this is in cached memory, flush the cache
12554 * before we send the DMA request to the other
12555 * controller. We want to do this in either the
12556 * read or the write case. The read case is
12557 * straightforward. In the write case, we want to
12558 * make sure nothing is in the local cache that
12559 * could overwrite the DMAed data.
12561 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) {
12563 * XXX KDM use bus_dmamap_sync() here.
12568 * Convert to a physical address if this is a
12571 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) {
12572 msg.dt.sg_list[0].addr =
12573 io->scsiio.kern_data_ptr;
12576 * XXX KDM use busdma here!
12579 msg.dt.sg_list[0].addr = (void *)
12580 vtophys(io->scsiio.kern_data_ptr);
12584 msg.dt.sg_list[0].len = io->scsiio.kern_data_len;
12587 struct ctl_sg_entry *sgl;
12590 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries;
12591 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr;
12592 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) {
12594 * XXX KDM use bus_dmamap_sync() here.
12599 msg.dt.kern_data_len = io->scsiio.kern_data_len;
12600 msg.dt.kern_total_len = io->scsiio.kern_total_len;
12601 msg.dt.kern_data_resid = io->scsiio.kern_data_resid;
12602 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset;
12603 msg.dt.sg_sequence = 0;
12606 * Loop until we've sent all of the S/G entries. On the
12607 * other end, we'll recompose these S/G entries into one
12608 * contiguous list before passing it to the
12610 for (sg_entries_sent = 0; sg_entries_sent <
12611 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) {
12612 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/
12613 sizeof(msg.dt.sg_list[0])),
12614 msg.dt.kern_sg_entries - sg_entries_sent);
12616 if (do_sg_copy != 0) {
12617 struct ctl_sg_entry *sgl;
12620 sgl = (struct ctl_sg_entry *)
12621 io->scsiio.kern_data_ptr;
12623 * If this is in cached memory, flush the cache
12624 * before we send the DMA request to the other
12625 * controller. We want to do this in either
12626 * the * read or the write case. The read
12627 * case is straightforward. In the write
12628 * case, we want to make sure nothing is
12629 * in the local cache that could overwrite
12633 for (i = sg_entries_sent, j = 0;
12634 i < msg.dt.cur_sg_entries; i++, j++) {
12635 if ((io->io_hdr.flags &
12636 CTL_FLAG_NO_DATASYNC) == 0) {
12638 * XXX KDM use bus_dmamap_sync()
12641 if ((io->io_hdr.flags &
12642 CTL_FLAG_BUS_ADDR) == 0) {
12644 * XXX KDM use busdma.
12647 msg.dt.sg_list[j].addr =(void *)
12648 vtophys(sgl[i].addr);
12651 msg.dt.sg_list[j].addr =
12654 msg.dt.sg_list[j].len = sgl[i].len;
12658 sg_entries_sent += msg.dt.cur_sg_entries;
12659 if (sg_entries_sent >= msg.dt.kern_sg_entries)
12660 msg.dt.sg_last = 1;
12662 msg.dt.sg_last = 0;
12665 * XXX KDM drop and reacquire the lock here?
12667 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg,
12668 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) {
12670 * XXX do something here.
12674 msg.dt.sent_sg_entries = sg_entries_sent;
12676 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE;
12677 if (io->io_hdr.flags & CTL_FLAG_FAILOVER)
12678 ctl_failover_io(io, /*have_lock*/ 0);
12683 * Lookup the fe_datamove() function for this particular
12687 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove;
12694 ctl_send_datamove_done(union ctl_io *io, int have_lock)
12696 union ctl_ha_msg msg;
12699 memset(&msg, 0, sizeof(msg));
12701 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE;
12702 msg.hdr.original_sc = io;
12703 msg.hdr.serializing_sc = io->io_hdr.serializing_sc;
12704 msg.hdr.nexus = io->io_hdr.nexus;
12705 msg.hdr.status = io->io_hdr.status;
12706 msg.scsi.tag_num = io->scsiio.tag_num;
12707 msg.scsi.tag_type = io->scsiio.tag_type;
12708 msg.scsi.scsi_status = io->scsiio.scsi_status;
12709 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data,
12710 sizeof(io->scsiio.sense_data));
12711 msg.scsi.sense_len = io->scsiio.sense_len;
12712 msg.scsi.sense_residual = io->scsiio.sense_residual;
12713 msg.scsi.fetd_status = io->io_hdr.port_status;
12714 msg.scsi.residual = io->scsiio.residual;
12715 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE;
12717 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) {
12718 ctl_failover_io(io, /*have_lock*/ have_lock);
12722 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0);
12723 if (isc_status > CTL_HA_STATUS_SUCCESS) {
12724 /* XXX do something if this fails */
12730 * The DMA to the remote side is done, now we need to tell the other side
12731 * we're done so it can continue with its data movement.
12734 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq)
12740 if (rq->ret != CTL_HA_STATUS_SUCCESS) {
12741 printf("%s: ISC DMA write failed with error %d", __func__,
12743 ctl_set_internal_failure(&io->scsiio,
12745 /*retry_count*/ rq->ret);
12748 ctl_dt_req_free(rq);
12751 * In this case, we had to malloc the memory locally. Free it.
12753 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) {
12755 for (i = 0; i < io->scsiio.kern_sg_entries; i++)
12756 free(io->io_hdr.local_sglist[i].addr, M_CTL);
12759 * The data is in local and remote memory, so now we need to send
12760 * status (good or back) back to the other side.
12762 ctl_send_datamove_done(io, /*have_lock*/ 0);
12766 * We've moved the data from the host/controller into local memory. Now we
12767 * need to push it over to the remote controller's memory.
12770 ctl_datamove_remote_dm_write_cb(union ctl_io *io)
12776 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE,
12777 ctl_datamove_remote_write_cb);
12783 ctl_datamove_remote_write(union ctl_io *io)
12786 void (*fe_datamove)(union ctl_io *io);
12789 * - Get the data from the host/HBA into local memory.
12790 * - DMA memory from the local controller to the remote controller.
12791 * - Send status back to the remote controller.
12794 retval = ctl_datamove_remote_sgl_setup(io);
12798 /* Switch the pointer over so the FETD knows what to do */
12799 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist;
12802 * Use a custom move done callback, since we need to send completion
12803 * back to the other controller, not to the backend on this side.
12805 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb;
12807 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove;
12816 ctl_datamove_remote_dm_read_cb(union ctl_io *io)
12825 * In this case, we had to malloc the memory locally. Free it.
12827 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) {
12829 for (i = 0; i < io->scsiio.kern_sg_entries; i++)
12830 free(io->io_hdr.local_sglist[i].addr, M_CTL);
12834 scsi_path_string(io, path_str, sizeof(path_str));
12835 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN);
12836 sbuf_cat(&sb, path_str);
12837 scsi_command_string(&io->scsiio, NULL, &sb);
12838 sbuf_printf(&sb, "\n");
12839 sbuf_cat(&sb, path_str);
12840 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n",
12841 io->scsiio.tag_num, io->scsiio.tag_type);
12842 sbuf_cat(&sb, path_str);
12843 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__,
12844 io->io_hdr.flags, io->io_hdr.status);
12846 printk("%s", sbuf_data(&sb));
12851 * The read is done, now we need to send status (good or bad) back
12852 * to the other side.
12854 ctl_send_datamove_done(io, /*have_lock*/ 0);
12860 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq)
12863 void (*fe_datamove)(union ctl_io *io);
12867 if (rq->ret != CTL_HA_STATUS_SUCCESS) {
12868 printf("%s: ISC DMA read failed with error %d", __func__,
12870 ctl_set_internal_failure(&io->scsiio,
12872 /*retry_count*/ rq->ret);
12875 ctl_dt_req_free(rq);
12877 /* Switch the pointer over so the FETD knows what to do */
12878 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist;
12881 * Use a custom move done callback, since we need to send completion
12882 * back to the other controller, not to the backend on this side.
12884 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb;
12886 /* XXX KDM add checks like the ones in ctl_datamove? */
12888 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove;
12894 ctl_datamove_remote_sgl_setup(union ctl_io *io)
12896 struct ctl_sg_entry *local_sglist, *remote_sglist;
12897 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist;
12898 struct ctl_softc *softc;
12903 softc = control_softc;
12905 local_sglist = io->io_hdr.local_sglist;
12906 local_dma_sglist = io->io_hdr.local_dma_sglist;
12907 remote_sglist = io->io_hdr.remote_sglist;
12908 remote_dma_sglist = io->io_hdr.remote_dma_sglist;
12910 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) {
12911 for (i = 0; i < io->scsiio.kern_sg_entries; i++) {
12912 local_sglist[i].len = remote_sglist[i].len;
12915 * XXX Detect the situation where the RS-level I/O
12916 * redirector on the other side has already read the
12917 * data off of the AOR RS on this side, and
12918 * transferred it to remote (mirror) memory on the
12919 * other side. Since we already have the data in
12920 * memory here, we just need to use it.
12922 * XXX KDM this can probably be removed once we
12923 * get the cache device code in and take the
12924 * current AOR implementation out.
12927 if ((remote_sglist[i].addr >=
12928 (void *)vtophys(softc->mirr->addr))
12929 && (remote_sglist[i].addr <
12930 ((void *)vtophys(softc->mirr->addr) +
12931 CacheMirrorOffset))) {
12932 local_sglist[i].addr = remote_sglist[i].addr -
12934 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) ==
12936 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE;
12938 local_sglist[i].addr = remote_sglist[i].addr +
12943 printf("%s: local %p, remote %p, len %d\n",
12944 __func__, local_sglist[i].addr,
12945 remote_sglist[i].addr, local_sglist[i].len);
12949 uint32_t len_to_go;
12952 * In this case, we don't have automatically allocated
12953 * memory for this I/O on this controller. This typically
12954 * happens with internal CTL I/O -- e.g. inquiry, mode
12955 * sense, etc. Anything coming from RAIDCore will have
12956 * a mirror area available.
12958 len_to_go = io->scsiio.kern_data_len;
12961 * Clear the no datasync flag, we have to use malloced
12964 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC;
12967 * The difficult thing here is that the size of the various
12968 * S/G segments may be different than the size from the
12969 * remote controller. That'll make it harder when DMAing
12970 * the data back to the other side.
12972 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) /
12973 sizeof(io->io_hdr.remote_sglist[0])) &&
12974 (len_to_go > 0); i++) {
12975 local_sglist[i].len = ctl_min(len_to_go, 131072);
12976 CTL_SIZE_8B(local_dma_sglist[i].len,
12977 local_sglist[i].len);
12978 local_sglist[i].addr =
12979 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK);
12981 local_dma_sglist[i].addr = local_sglist[i].addr;
12983 if (local_sglist[i].addr == NULL) {
12986 printf("malloc failed for %zd bytes!",
12987 local_dma_sglist[i].len);
12988 for (j = 0; j < i; j++) {
12989 free(local_sglist[j].addr, M_CTL);
12991 ctl_set_internal_failure(&io->scsiio,
12993 /*retry_count*/ 4857);
12995 goto bailout_error;
12998 /* XXX KDM do we need a sync here? */
13000 len_to_go -= local_sglist[i].len;
13003 * Reset the number of S/G entries accordingly. The
13004 * original number of S/G entries is available in
13007 io->scsiio.kern_sg_entries = i;
13010 printf("%s: kern_sg_entries = %d\n", __func__,
13011 io->scsiio.kern_sg_entries);
13012 for (i = 0; i < io->scsiio.kern_sg_entries; i++)
13013 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i,
13014 local_sglist[i].addr, local_sglist[i].len,
13015 local_dma_sglist[i].len);
13024 ctl_send_datamove_done(io, /*have_lock*/ 0);
13030 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command,
13031 ctl_ha_dt_cb callback)
13033 struct ctl_ha_dt_req *rq;
13034 struct ctl_sg_entry *remote_sglist, *local_sglist;
13035 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist;
13036 uint32_t local_used, remote_used, total_used;
13042 rq = ctl_dt_req_alloc();
13045 * If we failed to allocate the request, and if the DMA didn't fail
13046 * anyway, set busy status. This is just a resource allocation
13050 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE))
13051 ctl_set_busy(&io->scsiio);
13053 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) {
13056 ctl_dt_req_free(rq);
13059 * The data move failed. We need to return status back
13060 * to the other controller. No point in trying to DMA
13061 * data to the remote controller.
13064 ctl_send_datamove_done(io, /*have_lock*/ 0);
13071 local_sglist = io->io_hdr.local_sglist;
13072 local_dma_sglist = io->io_hdr.local_dma_sglist;
13073 remote_sglist = io->io_hdr.remote_sglist;
13074 remote_dma_sglist = io->io_hdr.remote_dma_sglist;
13079 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) {
13080 rq->ret = CTL_HA_STATUS_SUCCESS;
13087 * Pull/push the data over the wire from/to the other controller.
13088 * This takes into account the possibility that the local and
13089 * remote sglists may not be identical in terms of the size of
13090 * the elements and the number of elements.
13092 * One fundamental assumption here is that the length allocated for
13093 * both the local and remote sglists is identical. Otherwise, we've
13094 * essentially got a coding error of some sort.
13096 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) {
13098 uint32_t cur_len, dma_length;
13101 rq->id = CTL_HA_DATA_CTL;
13102 rq->command = command;
13106 * Both pointers should be aligned. But it is possible
13107 * that the allocation length is not. They should both
13108 * also have enough slack left over at the end, though,
13109 * to round up to the next 8 byte boundary.
13111 cur_len = ctl_min(local_sglist[i].len - local_used,
13112 remote_sglist[j].len - remote_used);
13115 * In this case, we have a size issue and need to decrease
13116 * the size, except in the case where we actually have less
13117 * than 8 bytes left. In that case, we need to increase
13118 * the DMA length to get the last bit.
13120 if ((cur_len & 0x7) != 0) {
13121 if (cur_len > 0x7) {
13122 cur_len = cur_len - (cur_len & 0x7);
13123 dma_length = cur_len;
13125 CTL_SIZE_8B(dma_length, cur_len);
13129 dma_length = cur_len;
13132 * If we had to allocate memory for this I/O, instead of using
13133 * the non-cached mirror memory, we'll need to flush the cache
13134 * before trying to DMA to the other controller.
13136 * We could end up doing this multiple times for the same
13137 * segment if we have a larger local segment than remote
13138 * segment. That shouldn't be an issue.
13140 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) {
13142 * XXX KDM use bus_dmamap_sync() here.
13146 rq->size = dma_length;
13148 tmp_ptr = (uint8_t *)local_sglist[i].addr;
13149 tmp_ptr += local_used;
13151 /* Use physical addresses when talking to ISC hardware */
13152 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) {
13153 /* XXX KDM use busdma */
13155 rq->local = vtophys(tmp_ptr);
13158 rq->local = tmp_ptr;
13160 tmp_ptr = (uint8_t *)remote_sglist[j].addr;
13161 tmp_ptr += remote_used;
13162 rq->remote = tmp_ptr;
13164 rq->callback = NULL;
13166 local_used += cur_len;
13167 if (local_used >= local_sglist[i].len) {
13172 remote_used += cur_len;
13173 if (remote_used >= remote_sglist[j].len) {
13177 total_used += cur_len;
13179 if (total_used >= io->scsiio.kern_data_len)
13180 rq->callback = callback;
13182 if ((rq->size & 0x7) != 0) {
13183 printf("%s: warning: size %d is not on 8b boundary\n",
13184 __func__, rq->size);
13186 if (((uintptr_t)rq->local & 0x7) != 0) {
13187 printf("%s: warning: local %p not on 8b boundary\n",
13188 __func__, rq->local);
13190 if (((uintptr_t)rq->remote & 0x7) != 0) {
13191 printf("%s: warning: remote %p not on 8b boundary\n",
13192 __func__, rq->local);
13195 printf("%s: %s: local %#x remote %#x size %d\n", __func__,
13196 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ",
13197 rq->local, rq->remote, rq->size);
13200 isc_ret = ctl_dt_single(rq);
13201 if (isc_ret == CTL_HA_STATUS_WAIT)
13204 if (isc_ret == CTL_HA_STATUS_DISCONNECT) {
13205 rq->ret = CTL_HA_STATUS_SUCCESS;
13219 ctl_datamove_remote_read(union ctl_io *io)
13225 * This will send an error to the other controller in the case of a
13228 retval = ctl_datamove_remote_sgl_setup(io);
13232 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ,
13233 ctl_datamove_remote_read_cb);
13235 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) {
13237 * Make sure we free memory if there was an error.. The
13238 * ctl_datamove_remote_xfer() function will send the
13239 * datamove done message, or call the callback with an
13240 * error if there is a problem.
13242 for (i = 0; i < io->scsiio.kern_sg_entries; i++)
13243 free(io->io_hdr.local_sglist[i].addr, M_CTL);
13250 * Process a datamove request from the other controller. This is used for
13251 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory
13252 * first. Once that is complete, the data gets DMAed into the remote
13253 * controller's memory. For reads, we DMA from the remote controller's
13254 * memory into our memory first, and then move it out to the FETD.
13257 ctl_datamove_remote(union ctl_io *io)
13259 struct ctl_softc *softc;
13261 softc = control_softc;
13263 mtx_assert(&softc->ctl_lock, MA_NOTOWNED);
13266 * Note that we look for an aborted I/O here, but don't do some of
13267 * the other checks that ctl_datamove() normally does. We don't
13268 * need to run the task queue, because this I/O is on the ISC
13269 * queue, which is executed by the work thread after the task queue.
13270 * We don't need to run the datamove delay code, since that should
13271 * have been done if need be on the other controller.
13273 if (io->io_hdr.flags & CTL_FLAG_ABORT) {
13275 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__,
13276 io->scsiio.tag_num, io->io_hdr.nexus.initid.id,
13277 io->io_hdr.nexus.targ_port,
13278 io->io_hdr.nexus.targ_target.id,
13279 io->io_hdr.nexus.targ_lun);
13280 io->io_hdr.status = CTL_CMD_ABORTED;
13281 io->io_hdr.port_status = 31338;
13283 ctl_send_datamove_done(io, /*have_lock*/ 0);
13288 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) {
13289 ctl_datamove_remote_write(io);
13290 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){
13291 ctl_datamove_remote_read(io);
13293 union ctl_ha_msg msg;
13294 struct scsi_sense_data *sense;
13298 memset(&msg, 0, sizeof(msg));
13300 msg.hdr.msg_type = CTL_MSG_BAD_JUJU;
13301 msg.hdr.status = CTL_SCSI_ERROR;
13302 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND;
13304 retry_count = 4243;
13306 sense = &msg.scsi.sense_data;
13307 sks[0] = SSD_SCS_VALID;
13308 sks[1] = (retry_count >> 8) & 0xff;
13309 sks[2] = retry_count & 0xff;
13311 /* "Internal target failure" */
13312 scsi_set_sense_data(sense,
13313 /*sense_format*/ SSD_TYPE_NONE,
13314 /*current_error*/ 1,
13315 /*sense_key*/ SSD_KEY_HARDWARE_ERROR,
13318 /*type*/ SSD_ELEM_SKS,
13319 /*size*/ sizeof(sks),
13323 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE;
13324 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) {
13325 ctl_failover_io(io, /*have_lock*/ 1);
13329 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) >
13330 CTL_HA_STATUS_SUCCESS) {
13331 /* XXX KDM what to do if this fails? */
13339 ctl_process_done(union ctl_io *io)
13341 struct ctl_lun *lun;
13342 struct ctl_softc *ctl_softc;
13343 void (*fe_done)(union ctl_io *io);
13344 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port);
13346 CTL_DEBUG_PRINT(("ctl_process_done\n"));
13349 control_softc->ctl_ports[targ_port]->fe_done;
13352 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) {
13357 ctl_scsi_path_string(io, path_str, sizeof(path_str));
13358 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN);
13360 sbuf_cat(&sb, path_str);
13361 switch (io->io_hdr.io_type) {
13363 ctl_scsi_command_string(&io->scsiio, NULL, &sb);
13364 sbuf_printf(&sb, "\n");
13365 sbuf_cat(&sb, path_str);
13366 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n",
13367 io->scsiio.tag_num, io->scsiio.tag_type);
13370 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, "
13371 "Tag Type: %d\n", io->taskio.task_action,
13372 io->taskio.tag_num, io->taskio.tag_type);
13375 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type);
13376 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type);
13379 sbuf_cat(&sb, path_str);
13380 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n",
13381 (intmax_t)time_uptime - io->io_hdr.start_time);
13383 printf("%s", sbuf_data(&sb));
13385 #endif /* CTL_TIME_IO */
13387 switch (io->io_hdr.io_type) {
13391 if (bootverbose || verbose > 0)
13392 ctl_io_error_print(io, NULL);
13393 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)
13397 return (CTL_RETVAL_COMPLETE);
13400 printf("ctl_process_done: invalid io type %d\n",
13401 io->io_hdr.io_type);
13402 panic("ctl_process_done: invalid io type %d\n",
13403 io->io_hdr.io_type);
13404 break; /* NOTREACHED */
13407 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
13409 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n",
13410 io->io_hdr.nexus.targ_mapped_lun));
13414 ctl_softc = lun->ctl_softc;
13416 mtx_lock(&lun->lun_lock);
13419 * Check to see if we have any errors to inject here. We only
13420 * inject errors for commands that don't already have errors set.
13422 if ((STAILQ_FIRST(&lun->error_list) != NULL)
13423 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))
13424 ctl_inject_error(lun, io);
13427 * XXX KDM how do we treat commands that aren't completed
13430 * XXX KDM should we also track I/O latency?
13432 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS &&
13433 io->io_hdr.io_type == CTL_IO_SCSI) {
13435 struct bintime cur_bt;
13439 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) ==
13441 type = CTL_STATS_READ;
13442 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) ==
13444 type = CTL_STATS_WRITE;
13446 type = CTL_STATS_NO_IO;
13448 lun->stats.ports[targ_port].bytes[type] +=
13449 io->scsiio.kern_total_len;
13450 lun->stats.ports[targ_port].operations[type]++;
13452 bintime_add(&lun->stats.ports[targ_port].dma_time[type],
13453 &io->io_hdr.dma_bt);
13454 lun->stats.ports[targ_port].num_dmas[type] +=
13455 io->io_hdr.num_dmas;
13456 getbintime(&cur_bt);
13457 bintime_sub(&cur_bt, &io->io_hdr.start_bt);
13458 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt);
13463 * Remove this from the OOA queue.
13465 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links);
13468 * Run through the blocked queue on this LUN and see if anything
13469 * has become unblocked, now that this transaction is done.
13471 ctl_check_blocked(lun);
13474 * If the LUN has been invalidated, free it if there is nothing
13475 * left on its OOA queue.
13477 if ((lun->flags & CTL_LUN_INVALID)
13478 && TAILQ_EMPTY(&lun->ooa_queue)) {
13479 mtx_unlock(&lun->lun_lock);
13480 mtx_lock(&ctl_softc->ctl_lock);
13482 mtx_unlock(&ctl_softc->ctl_lock);
13484 mtx_unlock(&lun->lun_lock);
13487 * If this command has been aborted, make sure we set the status
13488 * properly. The FETD is responsible for freeing the I/O and doing
13489 * whatever it needs to do to clean up its state.
13491 if (io->io_hdr.flags & CTL_FLAG_ABORT)
13492 ctl_set_task_aborted(&io->scsiio);
13495 * We print out status for every task management command. For SCSI
13496 * commands, we filter out any unit attention errors; they happen
13497 * on every boot, and would clutter up the log. Note: task
13498 * management commands aren't printed here, they are printed above,
13499 * since they should never even make it down here.
13501 switch (io->io_hdr.io_type) {
13502 case CTL_IO_SCSI: {
13503 int error_code, sense_key, asc, ascq;
13507 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR)
13508 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) {
13510 * Since this is just for printing, no need to
13511 * show errors here.
13513 scsi_extract_sense_len(&io->scsiio.sense_data,
13514 io->scsiio.sense_len,
13519 /*show_errors*/ 0);
13522 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)
13523 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR)
13524 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND)
13525 || (sense_key != SSD_KEY_UNIT_ATTENTION))) {
13527 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){
13528 ctl_softc->skipped_prints++;
13530 uint32_t skipped_prints;
13532 skipped_prints = ctl_softc->skipped_prints;
13534 ctl_softc->skipped_prints = 0;
13535 ctl_softc->last_print_jiffies = time_uptime;
13537 if (skipped_prints > 0) {
13539 csevent_log(CSC_CTL | CSC_SHELF_SW |
13541 csevent_LogType_Trace,
13542 csevent_Severity_Information,
13543 csevent_AlertLevel_Green,
13544 csevent_FRU_Firmware,
13545 csevent_FRU_Unknown,
13546 "High CTL error volume, %d prints "
13547 "skipped", skipped_prints);
13550 if (bootverbose || verbose > 0)
13551 ctl_io_error_print(io, NULL);
13557 if (bootverbose || verbose > 0)
13558 ctl_io_error_print(io, NULL);
13565 * Tell the FETD or the other shelf controller we're done with this
13566 * command. Note that only SCSI commands get to this point. Task
13567 * management commands are completed above.
13569 * We only send status to the other controller if we're in XFER
13570 * mode. In SER_ONLY mode, the I/O is done on the controller that
13571 * received the I/O (from CTL's perspective), and so the status is
13574 * XXX KDM if we hold the lock here, we could cause a deadlock
13575 * if the frontend comes back in in this context to queue
13578 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER)
13579 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) {
13580 union ctl_ha_msg msg;
13582 memset(&msg, 0, sizeof(msg));
13583 msg.hdr.msg_type = CTL_MSG_FINISH_IO;
13584 msg.hdr.original_sc = io->io_hdr.original_sc;
13585 msg.hdr.nexus = io->io_hdr.nexus;
13586 msg.hdr.status = io->io_hdr.status;
13587 msg.scsi.scsi_status = io->scsiio.scsi_status;
13588 msg.scsi.tag_num = io->scsiio.tag_num;
13589 msg.scsi.tag_type = io->scsiio.tag_type;
13590 msg.scsi.sense_len = io->scsiio.sense_len;
13591 msg.scsi.sense_residual = io->scsiio.sense_residual;
13592 msg.scsi.residual = io->scsiio.residual;
13593 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data,
13594 sizeof(io->scsiio.sense_data));
13596 * We copy this whether or not this is an I/O-related
13597 * command. Otherwise, we'd have to go and check to see
13598 * whether it's a read/write command, and it really isn't
13601 memcpy(&msg.scsi.lbalen,
13602 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes,
13603 sizeof(msg.scsi.lbalen));
13605 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg,
13606 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) {
13607 /* XXX do something here */
13616 return (CTL_RETVAL_COMPLETE);
13620 * Front end should call this if it doesn't do autosense. When the request
13621 * sense comes back in from the initiator, we'll dequeue this and send it.
13624 ctl_queue_sense(union ctl_io *io)
13626 struct ctl_lun *lun;
13627 struct ctl_softc *ctl_softc;
13628 uint32_t initidx, targ_lun;
13630 ctl_softc = control_softc;
13632 CTL_DEBUG_PRINT(("ctl_queue_sense\n"));
13635 * LUN lookup will likely move to the ctl_work_thread() once we
13636 * have our new queueing infrastructure (that doesn't put things on
13637 * a per-LUN queue initially). That is so that we can handle
13638 * things like an INQUIRY to a LUN that we don't have enabled. We
13639 * can't deal with that right now.
13641 mtx_lock(&ctl_softc->ctl_lock);
13644 * If we don't have a LUN for this, just toss the sense
13647 targ_lun = io->io_hdr.nexus.targ_lun;
13648 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun);
13649 if ((targ_lun < CTL_MAX_LUNS)
13650 && (ctl_softc->ctl_luns[targ_lun] != NULL))
13651 lun = ctl_softc->ctl_luns[targ_lun];
13655 initidx = ctl_get_initindex(&io->io_hdr.nexus);
13657 mtx_lock(&lun->lun_lock);
13659 * Already have CA set for this LUN...toss the sense information.
13661 if (ctl_is_set(lun->have_ca, initidx)) {
13662 mtx_unlock(&lun->lun_lock);
13666 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data,
13667 ctl_min(sizeof(lun->pending_sense[initidx].sense),
13668 sizeof(io->scsiio.sense_data)));
13669 ctl_set_mask(lun->have_ca, initidx);
13670 mtx_unlock(&lun->lun_lock);
13673 mtx_unlock(&ctl_softc->ctl_lock);
13677 return (CTL_RETVAL_COMPLETE);
13681 * Primary command inlet from frontend ports. All SCSI and task I/O
13682 * requests must go through this function.
13685 ctl_queue(union ctl_io *io)
13687 struct ctl_softc *ctl_softc;
13689 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0]));
13691 ctl_softc = control_softc;
13694 io->io_hdr.start_time = time_uptime;
13695 getbintime(&io->io_hdr.start_bt);
13696 #endif /* CTL_TIME_IO */
13698 /* Map FE-specific LUN ID into global one. */
13699 io->io_hdr.nexus.targ_mapped_lun =
13700 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun);
13702 switch (io->io_hdr.io_type) {
13705 ctl_enqueue_incoming(io);
13708 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type);
13712 return (CTL_RETVAL_COMPLETE);
13715 #ifdef CTL_IO_DELAY
13717 ctl_done_timer_wakeup(void *arg)
13721 io = (union ctl_io *)arg;
13724 #endif /* CTL_IO_DELAY */
13727 ctl_done(union ctl_io *io)
13729 struct ctl_softc *ctl_softc;
13731 ctl_softc = control_softc;
13734 * Enable this to catch duplicate completion issues.
13737 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) {
13738 printf("%s: type %d msg %d cdb %x iptl: "
13739 "%d:%d:%d:%d tag 0x%04x "
13740 "flag %#x status %x\n",
13742 io->io_hdr.io_type,
13743 io->io_hdr.msg_type,
13745 io->io_hdr.nexus.initid.id,
13746 io->io_hdr.nexus.targ_port,
13747 io->io_hdr.nexus.targ_target.id,
13748 io->io_hdr.nexus.targ_lun,
13749 (io->io_hdr.io_type ==
13751 io->taskio.tag_num :
13752 io->scsiio.tag_num,
13754 io->io_hdr.status);
13756 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE;
13760 * This is an internal copy of an I/O, and should not go through
13761 * the normal done processing logic.
13763 if (io->io_hdr.flags & CTL_FLAG_INT_COPY)
13767 * We need to send a msg to the serializing shelf to finish the IO
13768 * as well. We don't send a finish message to the other shelf if
13769 * this is a task management command. Task management commands
13770 * aren't serialized in the OOA queue, but rather just executed on
13771 * both shelf controllers for commands that originated on that
13774 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)
13775 && (io->io_hdr.io_type != CTL_IO_TASK)) {
13776 union ctl_ha_msg msg_io;
13778 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO;
13779 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc;
13780 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io,
13781 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) {
13783 /* continue on to finish IO */
13785 #ifdef CTL_IO_DELAY
13786 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) {
13787 struct ctl_lun *lun;
13789 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
13791 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE;
13793 struct ctl_lun *lun;
13795 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
13798 && (lun->delay_info.done_delay > 0)) {
13799 struct callout *callout;
13801 callout = (struct callout *)&io->io_hdr.timer_bytes;
13802 callout_init(callout, /*mpsafe*/ 1);
13803 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE;
13804 callout_reset(callout,
13805 lun->delay_info.done_delay * hz,
13806 ctl_done_timer_wakeup, io);
13807 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT)
13808 lun->delay_info.done_delay = 0;
13812 #endif /* CTL_IO_DELAY */
13814 ctl_enqueue_done(io);
13818 ctl_isc(struct ctl_scsiio *ctsio)
13820 struct ctl_lun *lun;
13823 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
13825 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0]));
13827 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n"));
13829 retval = lun->backend->data_submit((union ctl_io *)ctsio);
13836 ctl_work_thread(void *arg)
13838 struct ctl_thread *thr = (struct ctl_thread *)arg;
13839 struct ctl_softc *softc = thr->ctl_softc;
13843 CTL_DEBUG_PRINT(("ctl_work_thread starting\n"));
13849 * We handle the queues in this order:
13851 * - done queue (to free up resources, unblock other commands)
13855 * If those queues are empty, we break out of the loop and
13858 mtx_lock(&thr->queue_lock);
13859 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue);
13861 STAILQ_REMOVE_HEAD(&thr->isc_queue, links);
13862 mtx_unlock(&thr->queue_lock);
13863 ctl_handle_isc(io);
13866 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue);
13868 STAILQ_REMOVE_HEAD(&thr->done_queue, links);
13869 /* clear any blocked commands, call fe_done */
13870 mtx_unlock(&thr->queue_lock);
13871 retval = ctl_process_done(io);
13874 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue);
13876 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links);
13877 mtx_unlock(&thr->queue_lock);
13878 if (io->io_hdr.io_type == CTL_IO_TASK)
13881 ctl_scsiio_precheck(softc, &io->scsiio);
13884 if (!ctl_pause_rtr) {
13885 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue);
13887 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links);
13888 mtx_unlock(&thr->queue_lock);
13889 retval = ctl_scsiio(&io->scsiio);
13890 if (retval != CTL_RETVAL_COMPLETE)
13891 CTL_DEBUG_PRINT(("ctl_scsiio failed\n"));
13896 /* Sleep until we have something to do. */
13897 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0);
13902 ctl_lun_thread(void *arg)
13904 struct ctl_softc *softc = (struct ctl_softc *)arg;
13905 struct ctl_be_lun *be_lun;
13908 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n"));
13912 mtx_lock(&softc->ctl_lock);
13913 be_lun = STAILQ_FIRST(&softc->pending_lun_queue);
13914 if (be_lun != NULL) {
13915 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links);
13916 mtx_unlock(&softc->ctl_lock);
13917 ctl_create_lun(be_lun);
13921 /* Sleep until we have something to do. */
13922 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock,
13923 PDROP | PRIBIO, "-", 0);
13928 ctl_enqueue_incoming(union ctl_io *io)
13930 struct ctl_softc *softc = control_softc;
13931 struct ctl_thread *thr;
13934 idx = (io->io_hdr.nexus.targ_port * 127 +
13935 io->io_hdr.nexus.initid.id) % worker_threads;
13936 thr = &softc->threads[idx];
13937 mtx_lock(&thr->queue_lock);
13938 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links);
13939 mtx_unlock(&thr->queue_lock);
13944 ctl_enqueue_rtr(union ctl_io *io)
13946 struct ctl_softc *softc = control_softc;
13947 struct ctl_thread *thr;
13949 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads];
13950 mtx_lock(&thr->queue_lock);
13951 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links);
13952 mtx_unlock(&thr->queue_lock);
13957 ctl_enqueue_done(union ctl_io *io)
13959 struct ctl_softc *softc = control_softc;
13960 struct ctl_thread *thr;
13962 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads];
13963 mtx_lock(&thr->queue_lock);
13964 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links);
13965 mtx_unlock(&thr->queue_lock);
13970 ctl_enqueue_isc(union ctl_io *io)
13972 struct ctl_softc *softc = control_softc;
13973 struct ctl_thread *thr;
13975 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads];
13976 mtx_lock(&thr->queue_lock);
13977 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links);
13978 mtx_unlock(&thr->queue_lock);
13982 /* Initialization and failover */
13985 ctl_init_isc_msg(void)
13987 printf("CTL: Still calling this thing\n");
13992 * Initializes component into configuration defined by bootMode
13994 * returns hasc_Status:
13996 * ERROR - fatal error
13998 static ctl_ha_comp_status
13999 ctl_isc_init(struct ctl_ha_component *c)
14001 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK;
14008 * Starts component in state requested. If component starts successfully,
14009 * it must set its own state to the requestrd state
14010 * When requested state is HASC_STATE_HA, the component may refine it
14011 * by adding _SLAVE or _MASTER flags.
14012 * Currently allowed state transitions are:
14013 * UNKNOWN->HA - initial startup
14014 * UNKNOWN->SINGLE - initial startup when no parter detected
14015 * HA->SINGLE - failover
14016 * returns ctl_ha_comp_status:
14017 * OK - component successfully started in requested state
14018 * FAILED - could not start the requested state, failover may
14020 * ERROR - fatal error detected, no future startup possible
14022 static ctl_ha_comp_status
14023 ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state)
14025 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK;
14027 printf("%s: go\n", __func__);
14029 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap)
14030 if (c->state == CTL_HA_STATE_UNKNOWN ) {
14032 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler)
14033 != CTL_HA_STATUS_SUCCESS) {
14034 printf("ctl_isc_start: ctl_ha_msg_create failed.\n");
14035 ret = CTL_HA_COMP_STATUS_ERROR;
14037 } else if (CTL_HA_STATE_IS_HA(c->state)
14038 && CTL_HA_STATE_IS_SINGLE(state)){
14039 // HA->SINGLE transition
14043 printf("ctl_isc_start:Invalid state transition %X->%X\n",
14045 ret = CTL_HA_COMP_STATUS_ERROR;
14047 if (CTL_HA_STATE_IS_SINGLE(state))
14056 * Quiesce component
14057 * The component must clear any error conditions (set status to OK) and
14058 * prepare itself to another Start call
14059 * returns ctl_ha_comp_status:
14063 static ctl_ha_comp_status
14064 ctl_isc_quiesce(struct ctl_ha_component *c)
14066 int ret = CTL_HA_COMP_STATUS_OK;
14073 struct ctl_ha_component ctl_ha_component_ctlisc =
14076 .state = CTL_HA_STATE_UNKNOWN,
14077 .init = ctl_isc_init,
14078 .start = ctl_isc_start,
14079 .quiesce = ctl_isc_quiesce