2 * Copyright (c) 2011-2015 LSI Corp.
3 * Copyright (c) 2013-2016 Avago Technologies
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 /* TODO Move headers to mprvar */
34 #include <sys/types.h>
35 #include <sys/param.h>
37 #include <sys/mutex.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/kthread.h>
42 #include <sys/taskqueue.h>
44 #include <sys/endian.h>
45 #include <sys/sysctl.h>
46 #include <sys/eventhandler.h>
48 #include <machine/bus.h>
49 #include <machine/resource.h>
50 #include <dev/mpr/mpi/mpi2_type.h>
51 #include <dev/mpr/mpi/mpi2.h>
52 #include <dev/mpr/mpi/mpi2_ioc.h>
53 #include <dev/mpr/mpi/mpi2_sas.h>
54 #include <dev/mpr/mpi/mpi2_pci.h>
55 #include <dev/mpr/mpi/mpi2_cnfg.h>
56 #include <dev/mpr/mpi/mpi2_init.h>
57 #include <dev/mpr/mpi/mpi2_tool.h>
58 #include <dev/mpr/mpr_ioctl.h>
59 #include <dev/mpr/mprvar.h>
60 #include <dev/mpr/mpr_mapping.h>
63 * _mapping_clear_map_entry - Clear a particular mapping entry.
64 * @map_entry: map table entry
69 _mapping_clear_map_entry(struct dev_mapping_table *map_entry)
71 map_entry->physical_id = 0;
72 map_entry->device_info = 0;
73 map_entry->phy_bits = 0;
74 map_entry->dpm_entry_num = MPR_DPM_BAD_IDX;
75 map_entry->dev_handle = 0;
77 map_entry->missing_count = 0;
78 map_entry->init_complete = 0;
79 map_entry->TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR;
83 * _mapping_clear_enc_entry - Clear a particular enclosure table entry.
84 * @enc_entry: enclosure table entry
89 _mapping_clear_enc_entry(struct enc_mapping_table *enc_entry)
91 enc_entry->enclosure_id = 0;
92 enc_entry->start_index = MPR_MAPTABLE_BAD_IDX;
93 enc_entry->phy_bits = 0;
94 enc_entry->dpm_entry_num = MPR_DPM_BAD_IDX;
95 enc_entry->enc_handle = 0;
96 enc_entry->num_slots = 0;
97 enc_entry->start_slot = 0;
98 enc_entry->missing_count = 0;
99 enc_entry->removal_flag = 0;
100 enc_entry->skip_search = 0;
101 enc_entry->init_complete = 0;
105 * _mapping_commit_enc_entry - write a particular enc entry in DPM page0.
106 * @sc: per adapter object
107 * @enc_entry: enclosure table entry
109 * Returns 0 for success, non-zero for failure.
112 _mapping_commit_enc_entry(struct mpr_softc *sc,
113 struct enc_mapping_table *et_entry)
115 Mpi2DriverMap0Entry_t *dpm_entry;
116 struct dev_mapping_table *mt_entry;
117 Mpi2ConfigReply_t mpi_reply;
118 Mpi2DriverMappingPage0_t config_page;
120 if (!sc->is_dpm_enable)
123 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t));
124 memcpy(&config_page.Header, (u8 *) sc->dpm_pg0,
125 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
126 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
127 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
128 dpm_entry += et_entry->dpm_entry_num;
129 dpm_entry->PhysicalIdentifier.Low =
130 ( 0xFFFFFFFF & et_entry->enclosure_id);
131 dpm_entry->PhysicalIdentifier.High =
132 ( et_entry->enclosure_id >> 32);
133 mt_entry = &sc->mapping_table[et_entry->start_index];
134 dpm_entry->DeviceIndex = htole16(mt_entry->id);
135 dpm_entry->MappingInformation = et_entry->num_slots;
136 dpm_entry->MappingInformation <<= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
137 dpm_entry->MappingInformation |= et_entry->missing_count;
138 dpm_entry->MappingInformation = htole16(dpm_entry->MappingInformation);
139 dpm_entry->PhysicalBitsMapping = htole32(et_entry->phy_bits);
140 dpm_entry->Reserved1 = 0;
142 mpr_dprint(sc, MPR_MAPPING, "%s: Writing DPM entry %d for enclosure.\n",
143 __func__, et_entry->dpm_entry_num);
144 memcpy(&config_page.Entry, (u8 *)dpm_entry,
145 sizeof(Mpi2DriverMap0Entry_t));
146 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page,
147 et_entry->dpm_entry_num)) {
148 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Write of DPM "
149 "entry %d for enclosure failed.\n", __func__,
150 et_entry->dpm_entry_num);
151 dpm_entry->MappingInformation = le16toh(dpm_entry->
153 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
154 dpm_entry->PhysicalBitsMapping =
155 le32toh(dpm_entry->PhysicalBitsMapping);
158 dpm_entry->MappingInformation = le16toh(dpm_entry->
160 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
161 dpm_entry->PhysicalBitsMapping =
162 le32toh(dpm_entry->PhysicalBitsMapping);
167 * _mapping_commit_map_entry - write a particular map table entry in DPM page0.
168 * @sc: per adapter object
169 * @mt_entry: mapping table entry
171 * Returns 0 for success, non-zero for failure.
175 _mapping_commit_map_entry(struct mpr_softc *sc,
176 struct dev_mapping_table *mt_entry)
178 Mpi2DriverMap0Entry_t *dpm_entry;
179 Mpi2ConfigReply_t mpi_reply;
180 Mpi2DriverMappingPage0_t config_page;
182 if (!sc->is_dpm_enable)
186 * It's possible that this Map Entry points to a BAD DPM index. This
187 * can happen if the Map Entry is a for a missing device and the DPM
188 * entry that was being used by this device is now being used by some
189 * new device. So, check for a BAD DPM index and just return if so.
191 if (mt_entry->dpm_entry_num == MPR_DPM_BAD_IDX) {
192 mpr_dprint(sc, MPR_MAPPING, "%s: DPM entry location for target "
193 "%d is invalid. DPM will not be written.\n", __func__,
198 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t));
199 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0,
200 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
201 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *) sc->dpm_pg0 +
202 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
203 dpm_entry = dpm_entry + mt_entry->dpm_entry_num;
204 dpm_entry->PhysicalIdentifier.Low = (0xFFFFFFFF &
205 mt_entry->physical_id);
206 dpm_entry->PhysicalIdentifier.High = (mt_entry->physical_id >> 32);
207 dpm_entry->DeviceIndex = htole16(mt_entry->id);
208 dpm_entry->MappingInformation = htole16(mt_entry->missing_count);
209 dpm_entry->PhysicalBitsMapping = 0;
210 dpm_entry->Reserved1 = 0;
211 memcpy(&config_page.Entry, (u8 *)dpm_entry,
212 sizeof(Mpi2DriverMap0Entry_t));
214 mpr_dprint(sc, MPR_MAPPING, "%s: Writing DPM entry %d for target %d.\n",
215 __func__, mt_entry->dpm_entry_num, mt_entry->id);
216 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page,
217 mt_entry->dpm_entry_num)) {
218 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Write of DPM "
219 "entry %d for target %d failed.\n", __func__,
220 mt_entry->dpm_entry_num, mt_entry->id);
221 dpm_entry->MappingInformation = le16toh(dpm_entry->
223 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
227 dpm_entry->MappingInformation = le16toh(dpm_entry->MappingInformation);
228 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
233 * _mapping_get_ir_maprange - get start and end index for IR map range.
234 * @sc: per adapter object
235 * @start_idx: place holder for start index
236 * @end_idx: place holder for end index
238 * The IR volumes can be mapped either at start or end of the mapping table
239 * this function gets the detail of where IR volume mapping starts and ends
240 * in the device mapping table
245 _mapping_get_ir_maprange(struct mpr_softc *sc, u32 *start_idx, u32 *end_idx)
247 u16 volume_mapping_flags;
248 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
250 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
251 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
252 if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
254 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
257 *start_idx = sc->max_devices - sc->max_volumes;
258 *end_idx = *start_idx + sc->max_volumes - 1;
262 * _mapping_get_enc_idx_from_id - get enclosure index from enclosure ID
263 * @sc: per adapter object
264 * @enc_id: enclosure logical identifier
266 * Returns the index of enclosure entry on success or bad index.
269 _mapping_get_enc_idx_from_id(struct mpr_softc *sc, u64 enc_id,
272 struct enc_mapping_table *et_entry;
275 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) {
276 et_entry = &sc->enclosure_table[enc_idx];
277 if ((et_entry->enclosure_id == le64toh(enc_id)) &&
278 (!et_entry->phy_bits || (et_entry->phy_bits &
282 return MPR_ENCTABLE_BAD_IDX;
286 * _mapping_get_enc_idx_from_handle - get enclosure index from handle
287 * @sc: per adapter object
288 * @enc_id: enclosure handle
290 * Returns the index of enclosure entry on success or bad index.
293 _mapping_get_enc_idx_from_handle(struct mpr_softc *sc, u16 handle)
295 struct enc_mapping_table *et_entry;
298 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) {
299 et_entry = &sc->enclosure_table[enc_idx];
300 if (et_entry->missing_count)
302 if (et_entry->enc_handle == handle)
305 return MPR_ENCTABLE_BAD_IDX;
309 * _mapping_get_high_missing_et_idx - get missing enclosure index
310 * @sc: per adapter object
312 * Search through the enclosure table and identifies the enclosure entry
313 * with high missing count and returns it's index
315 * Returns the index of enclosure entry on success or bad index.
318 _mapping_get_high_missing_et_idx(struct mpr_softc *sc)
320 struct enc_mapping_table *et_entry;
321 u8 high_missing_count = 0;
322 u8 enc_idx, high_idx = MPR_ENCTABLE_BAD_IDX;
324 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) {
325 et_entry = &sc->enclosure_table[enc_idx];
326 if ((et_entry->missing_count > high_missing_count) &&
327 !et_entry->skip_search) {
328 high_missing_count = et_entry->missing_count;
336 * _mapping_get_high_missing_mt_idx - get missing map table index
337 * @sc: per adapter object
339 * Search through the map table and identifies the device entry
340 * with high missing count and returns it's index
342 * Returns the index of map table entry on success or bad index.
345 _mapping_get_high_missing_mt_idx(struct mpr_softc *sc)
347 u32 map_idx, high_idx = MPR_MAPTABLE_BAD_IDX;
348 u8 high_missing_count = 0;
349 u32 start_idx, end_idx, start_idx_ir, end_idx_ir;
350 struct dev_mapping_table *mt_entry;
351 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
356 end_idx = sc->max_devices;
357 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
359 if (sc->ir_firmware) {
360 _mapping_get_ir_maprange(sc, &start_idx_ir, &end_idx_ir);
361 if (start_idx == start_idx_ir)
362 start_idx = end_idx_ir + 1;
364 end_idx = start_idx_ir;
366 mt_entry = &sc->mapping_table[start_idx];
367 for (map_idx = start_idx; map_idx < end_idx; map_idx++, mt_entry++) {
368 if (mt_entry->missing_count > high_missing_count) {
369 high_missing_count = mt_entry->missing_count;
377 * _mapping_get_ir_mt_idx_from_wwid - get map table index from volume WWID
378 * @sc: per adapter object
379 * @wwid: world wide unique ID of the volume
381 * Returns the index of map table entry on success or bad index.
384 _mapping_get_ir_mt_idx_from_wwid(struct mpr_softc *sc, u64 wwid)
386 u32 start_idx, end_idx, map_idx;
387 struct dev_mapping_table *mt_entry;
389 _mapping_get_ir_maprange(sc, &start_idx, &end_idx);
390 mt_entry = &sc->mapping_table[start_idx];
391 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++)
392 if (mt_entry->physical_id == wwid)
395 return MPR_MAPTABLE_BAD_IDX;
399 * _mapping_get_mt_idx_from_id - get map table index from a device ID
400 * @sc: per adapter object
401 * @dev_id: device identifer (SAS Address)
403 * Returns the index of map table entry on success or bad index.
406 _mapping_get_mt_idx_from_id(struct mpr_softc *sc, u64 dev_id)
409 struct dev_mapping_table *mt_entry;
411 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
412 mt_entry = &sc->mapping_table[map_idx];
413 if (mt_entry->physical_id == dev_id)
416 return MPR_MAPTABLE_BAD_IDX;
420 * _mapping_get_ir_mt_idx_from_handle - get map table index from volume handle
421 * @sc: per adapter object
422 * @wwid: volume device handle
424 * Returns the index of map table entry on success or bad index.
427 _mapping_get_ir_mt_idx_from_handle(struct mpr_softc *sc, u16 volHandle)
429 u32 start_idx, end_idx, map_idx;
430 struct dev_mapping_table *mt_entry;
432 _mapping_get_ir_maprange(sc, &start_idx, &end_idx);
433 mt_entry = &sc->mapping_table[start_idx];
434 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++)
435 if (mt_entry->dev_handle == volHandle)
438 return MPR_MAPTABLE_BAD_IDX;
442 * _mapping_get_mt_idx_from_handle - get map table index from handle
443 * @sc: per adapter object
444 * @dev_id: device handle
446 * Returns the index of map table entry on success or bad index.
449 _mapping_get_mt_idx_from_handle(struct mpr_softc *sc, u16 handle)
452 struct dev_mapping_table *mt_entry;
454 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
455 mt_entry = &sc->mapping_table[map_idx];
456 if (mt_entry->dev_handle == handle)
459 return MPR_MAPTABLE_BAD_IDX;
463 * _mapping_get_free_ir_mt_idx - get first free index for a volume
464 * @sc: per adapter object
466 * Search through mapping table for free index for a volume and if no free
467 * index then looks for a volume with high mapping index
469 * Returns the index of map table entry on success or bad index.
472 _mapping_get_free_ir_mt_idx(struct mpr_softc *sc)
474 u8 high_missing_count = 0;
475 u32 start_idx, end_idx, map_idx;
476 u32 high_idx = MPR_MAPTABLE_BAD_IDX;
477 struct dev_mapping_table *mt_entry;
480 * The IN_USE flag should be clear if the entry is available to use.
481 * This flag is cleared on initialization and and when a volume is
482 * deleted. All other times this flag should be set. If, for some
483 * reason, a free entry cannot be found, look for the entry with the
484 * highest missing count just in case there is one.
486 _mapping_get_ir_maprange(sc, &start_idx, &end_idx);
487 mt_entry = &sc->mapping_table[start_idx];
488 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) {
489 if (!(mt_entry->device_info & MPR_MAP_IN_USE))
492 if (mt_entry->missing_count > high_missing_count) {
493 high_missing_count = mt_entry->missing_count;
498 if (high_idx == MPR_MAPTABLE_BAD_IDX) {
499 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Could not find a "
500 "free entry in the mapping table for a Volume. The mapping "
501 "table is probably corrupt.\n", __func__);
508 * _mapping_get_free_mt_idx - get first free index for a device
509 * @sc: per adapter object
510 * @start_idx: offset in the table to start search
512 * Returns the index of map table entry on success or bad index.
515 _mapping_get_free_mt_idx(struct mpr_softc *sc, u32 start_idx)
517 u32 map_idx, max_idx = sc->max_devices;
518 struct dev_mapping_table *mt_entry = &sc->mapping_table[start_idx];
519 u16 volume_mapping_flags;
521 volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
522 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
523 if (sc->ir_firmware && (volume_mapping_flags ==
524 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING))
525 max_idx -= sc->max_volumes;
527 for (map_idx = start_idx; map_idx < max_idx; map_idx++, mt_entry++)
528 if (!(mt_entry->device_info & (MPR_MAP_IN_USE |
532 return MPR_MAPTABLE_BAD_IDX;
536 * _mapping_get_dpm_idx_from_id - get DPM index from ID
537 * @sc: per adapter object
538 * @id: volume WWID or enclosure ID or device ID
540 * Returns the index of DPM entry on success or bad index.
543 _mapping_get_dpm_idx_from_id(struct mpr_softc *sc, u64 id, u32 phy_bits)
546 uint64_t PhysicalIdentifier;
547 Mpi2DriverMap0Entry_t *dpm_entry;
549 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
550 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
551 PhysicalIdentifier = dpm_entry->PhysicalIdentifier.High;
552 PhysicalIdentifier = (PhysicalIdentifier << 32) |
553 dpm_entry->PhysicalIdentifier.Low;
554 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++,
556 if ((id == PhysicalIdentifier) &&
557 (!phy_bits || !dpm_entry->PhysicalBitsMapping ||
558 (phy_bits & dpm_entry->PhysicalBitsMapping)))
561 return MPR_DPM_BAD_IDX;
566 * _mapping_get_free_dpm_idx - get first available DPM index
567 * @sc: per adapter object
569 * Returns the index of DPM entry on success or bad index.
572 _mapping_get_free_dpm_idx(struct mpr_softc *sc)
575 Mpi2DriverMap0Entry_t *dpm_entry;
576 u16 current_entry = MPR_DPM_BAD_IDX, missing_cnt, high_missing_cnt = 0;
578 struct dev_mapping_table *mt_entry;
581 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) {
582 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 +
583 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
584 dpm_entry += entry_num;
585 missing_cnt = dpm_entry->MappingInformation &
586 MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
589 * If entry is used and not missing, then this entry can't be
590 * used. Look at next one.
592 if (sc->dpm_entry_used[entry_num] && !missing_cnt)
596 * If this entry is not used at all, then the missing count
597 * doesn't matter. Just use this one. Otherwise, keep looking
598 * and make sure the entry with the highest missing count is
601 if (!sc->dpm_entry_used[entry_num]) {
602 current_entry = entry_num;
605 if ((current_entry == MPR_DPM_BAD_IDX) ||
606 (missing_cnt > high_missing_cnt)) {
607 current_entry = entry_num;
608 high_missing_cnt = missing_cnt;
613 * If an entry has been found to use and it's already marked as used
614 * it means that some device was already using this entry but it's
615 * missing, and that means that the connection between the missing
616 * device's DPM entry and the mapping table needs to be cleared. To do
617 * this, use the Physical ID of the old device still in the DPM entry
618 * to find its mapping table entry, then mark its DPM entry as BAD.
620 if ((current_entry != MPR_DPM_BAD_IDX) &&
621 sc->dpm_entry_used[current_entry]) {
622 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 +
623 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
624 dpm_entry += current_entry;
625 physical_id = dpm_entry->PhysicalIdentifier.High;
626 physical_id = (physical_id << 32) |
627 dpm_entry->PhysicalIdentifier.Low;
628 map_idx = _mapping_get_mt_idx_from_id(sc, physical_id);
629 if (map_idx != MPR_MAPTABLE_BAD_IDX) {
630 mt_entry = &sc->mapping_table[map_idx];
631 mt_entry->dpm_entry_num = MPR_DPM_BAD_IDX;
634 return current_entry;
638 * _mapping_update_ir_missing_cnt - Updates missing count for a volume
639 * @sc: per adapter object
640 * @map_idx: map table index of the volume
641 * @element: IR configuration change element
642 * @wwid: IR volume ID.
644 * Updates the missing count in the map table and in the DPM entry for a volume
649 _mapping_update_ir_missing_cnt(struct mpr_softc *sc, u32 map_idx,
650 Mpi2EventIrConfigElement_t *element, u64 wwid)
652 struct dev_mapping_table *mt_entry;
653 u8 missing_cnt, reason = element->ReasonCode, update_dpm = 1;
655 Mpi2DriverMap0Entry_t *dpm_entry;
658 * Depending on the reason code, update the missing count. Always set
659 * the init_complete flag when here, so just do it first. That flag is
660 * used for volumes to make sure that the DPM entry has been updated.
661 * When a volume is deleted, clear the map entry's IN_USE flag so that
662 * the entry can be used again if another volume is created. Also clear
663 * its dev_handle entry so that other functions can't find this volume
664 * by the handle, since it's not defined any longer.
666 mt_entry = &sc->mapping_table[map_idx];
667 mt_entry->init_complete = 1;
668 if ((reason == MPI2_EVENT_IR_CHANGE_RC_ADDED) ||
669 (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED)) {
670 mt_entry->missing_count = 0;
671 } else if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) {
672 if (mt_entry->missing_count < MPR_MAX_MISSING_COUNT)
673 mt_entry->missing_count++;
675 mt_entry->device_info &= ~MPR_MAP_IN_USE;
676 mt_entry->dev_handle = 0;
680 * If persistent mapping is enabled, update the DPM with the new missing
681 * count for the volume. If the DPM index is bad, get a free one. If
682 * it's bad for a volume that's being deleted do nothing because that
683 * volume doesn't have a DPM entry.
685 if (!sc->is_dpm_enable)
687 dpm_idx = mt_entry->dpm_entry_num;
688 if (dpm_idx == MPR_DPM_BAD_IDX) {
689 if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED)
691 mpr_dprint(sc, MPR_MAPPING, "%s: Volume being deleted "
692 "is not in DPM so DPM missing count will not be "
693 "updated.\n", __func__);
697 if (dpm_idx == MPR_DPM_BAD_IDX)
698 dpm_idx = _mapping_get_free_dpm_idx(sc);
701 * Got the DPM entry for the volume or found a free DPM entry if this is
702 * a new volume. Check if the current information is outdated.
704 if (dpm_idx != MPR_DPM_BAD_IDX) {
705 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
706 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
707 dpm_entry += dpm_idx;
708 missing_cnt = dpm_entry->MappingInformation &
709 MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
710 if ((mt_entry->physical_id ==
711 le64toh(((u64)dpm_entry->PhysicalIdentifier.High << 32) |
712 (u64)dpm_entry->PhysicalIdentifier.Low)) && (missing_cnt ==
713 mt_entry->missing_count)) {
714 mpr_dprint(sc, MPR_MAPPING, "%s: DPM entry for volume "
715 "with target ID %d does not require an update.\n",
716 __func__, mt_entry->id);
722 * Update the volume's persistent info if it's new or the ID or missing
723 * count has changed. If a good DPM index has not been found by now,
724 * there is no space left in the DPM table.
726 if ((dpm_idx != MPR_DPM_BAD_IDX) && update_dpm) {
727 mpr_dprint(sc, MPR_MAPPING, "%s: Update DPM entry for volume "
728 "with target ID %d.\n", __func__, mt_entry->id);
729 mt_entry->dpm_entry_num = dpm_idx;
730 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
731 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
732 dpm_entry += dpm_idx;
733 dpm_entry->PhysicalIdentifier.Low =
734 (0xFFFFFFFF & mt_entry->physical_id);
735 dpm_entry->PhysicalIdentifier.High =
736 (mt_entry->physical_id >> 32);
737 dpm_entry->DeviceIndex = map_idx;
738 dpm_entry->MappingInformation = mt_entry->missing_count;
739 dpm_entry->PhysicalBitsMapping = 0;
740 dpm_entry->Reserved1 = 0;
741 sc->dpm_flush_entry[dpm_idx] = 1;
742 sc->dpm_entry_used[dpm_idx] = 1;
743 } else if (dpm_idx == MPR_DPM_BAD_IDX) {
744 mpr_dprint(sc, MPR_INFO | MPR_MAPPING, "%s: No space to add an "
745 "entry in the DPM table for volume with target ID %d.\n",
746 __func__, mt_entry->id);
751 * _mapping_add_to_removal_table - add DPM index to the removal table
752 * @sc: per adapter object
753 * @dpm_idx: Index of DPM entry to remove
755 * Adds a DPM entry number to the removal table.
760 _mapping_add_to_removal_table(struct mpr_softc *sc, u16 dpm_idx)
762 struct map_removal_table *remove_entry;
766 * This is only used to remove entries from the DPM in the controller.
767 * If DPM is not enabled, just return.
769 if (!sc->is_dpm_enable)
773 * Find the first available removal_table entry and add the new entry
776 remove_entry = sc->removal_table;
777 for (i = 0; i < sc->max_devices; i++, remove_entry++) {
778 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX)
781 mpr_dprint(sc, MPR_MAPPING, "%s: Adding DPM entry %d to table "
782 "for removal.\n", __func__, dpm_idx);
783 remove_entry->dpm_entry_num = dpm_idx;
790 * _mapping_inc_missing_count
791 * @sc: per adapter object
792 * @map_idx: index into the mapping table for the device that is missing
794 * Increment the missing count in the mapping table for a SAS, SATA, or PCIe
795 * device that is not responding. If Persitent Mapping is used, increment the
796 * DPM entry as well. Currently, this function is only called if the target
797 * goes missing, so after initialization has completed. This means that the
798 * missing count can only go from 0 to 1 here. The missing count is incremented
799 * during initialization as well, so that's where a target's missing count can
805 _mapping_inc_missing_count(struct mpr_softc *sc, u32 map_idx)
807 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
808 struct dev_mapping_table *mt_entry;
809 Mpi2DriverMap0Entry_t *dpm_entry;
811 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
812 mpr_dprint(sc, MPR_INFO | MPR_MAPPING, "%s: device is already "
813 "removed from mapping table\n", __func__);
816 mt_entry = &sc->mapping_table[map_idx];
817 if (mt_entry->missing_count < MPR_MAX_MISSING_COUNT)
818 mt_entry->missing_count++;
821 * When using Enc/Slot mapping, when a device is removed, it's mapping
822 * table information should be cleared. Otherwise, the target ID will
823 * be incorrect if this same device is re-added to a different slot.
825 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
826 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
827 _mapping_clear_map_entry(mt_entry);
831 * When using device mapping, update the missing count in the DPM entry,
832 * but only if the missing count has changed.
834 if (((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
835 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) &&
837 mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) {
838 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 +
839 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
840 dpm_entry += mt_entry->dpm_entry_num;
841 if (dpm_entry->MappingInformation != mt_entry->missing_count) {
842 dpm_entry->MappingInformation = mt_entry->missing_count;
843 sc->dpm_flush_entry[mt_entry->dpm_entry_num] = 1;
849 * _mapping_update_missing_count - Update missing count for a device
850 * @sc: per adapter object
851 * @topo_change: Topology change event entry
853 * Search through the topology change list and if any device is found not
854 * responding it's associated map table entry and DPM entry is updated
859 _mapping_update_missing_count(struct mpr_softc *sc,
860 struct _map_topology_change *topo_change)
863 struct _map_phy_change *phy_change;
866 for (entry = 0; entry < topo_change->num_entries; entry++) {
867 phy_change = &topo_change->phy_details[entry];
868 if (!phy_change->dev_handle || (phy_change->reason !=
869 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
871 map_idx = _mapping_get_mt_idx_from_handle(sc, phy_change->
873 phy_change->is_processed = 1;
874 _mapping_inc_missing_count(sc, map_idx);
879 * _mapping_update_pcie_missing_count - Update missing count for a PCIe device
880 * @sc: per adapter object
881 * @topo_change: Topology change event entry
883 * Search through the PCIe topology change list and if any device is found not
884 * responding it's associated map table entry and DPM entry is updated
889 _mapping_update_pcie_missing_count(struct mpr_softc *sc,
890 struct _map_pcie_topology_change *topo_change)
893 struct _map_port_change *port_change;
896 for (entry = 0; entry < topo_change->num_entries; entry++) {
897 port_change = &topo_change->port_details[entry];
898 if (!port_change->dev_handle || (port_change->reason !=
899 MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING))
901 map_idx = _mapping_get_mt_idx_from_handle(sc, port_change->
903 port_change->is_processed = 1;
904 _mapping_inc_missing_count(sc, map_idx);
909 * _mapping_find_enc_map_space -find map table entries for enclosure
910 * @sc: per adapter object
911 * @et_entry: enclosure entry
913 * Search through the mapping table defragment it and provide contiguous
914 * space in map table for a particular enclosure entry
916 * Returns start index in map table or bad index.
919 _mapping_find_enc_map_space(struct mpr_softc *sc,
920 struct enc_mapping_table *et_entry)
922 u16 vol_mapping_flags;
923 u32 skip_count, end_of_table, map_idx, enc_idx;
925 u32 start_idx = MPR_MAPTABLE_BAD_IDX;
926 struct dev_mapping_table *mt_entry;
927 struct enc_mapping_table *enc_entry;
928 unsigned char done_flag = 0, found_space;
929 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
931 skip_count = sc->num_rsvd_entries;
934 vol_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
935 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
938 * The end of the mapping table depends on where volumes are kept, if
941 if (!sc->ir_firmware)
942 end_of_table = sc->max_devices;
943 else if (vol_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)
944 end_of_table = sc->max_devices;
946 end_of_table = sc->max_devices - sc->max_volumes;
949 * The skip_count is the number of entries that are reserved at the
950 * beginning of the mapping table. But, it does not include the number
951 * of Physical IDs that are reserved for direct attached devices. Look
952 * through the mapping table after these reserved entries to see if
953 * the devices for this enclosure are already mapped. The PHY bit check
954 * is used to make sure that at least one PHY bit is common between the
955 * enclosure and the device that is already mapped.
957 mpr_dprint(sc, MPR_MAPPING, "%s: Looking for space in the mapping "
958 "table for added enclosure.\n", __func__);
959 for (map_idx = (max_num_phy_ids + skip_count);
960 map_idx < end_of_table; map_idx++) {
961 mt_entry = &sc->mapping_table[map_idx];
962 if ((et_entry->enclosure_id == mt_entry->physical_id) &&
963 (!mt_entry->phy_bits || (mt_entry->phy_bits &
964 et_entry->phy_bits))) {
966 if (num_found == et_entry->num_slots) {
967 start_idx = (map_idx - num_found) + 1;
968 mpr_dprint(sc, MPR_MAPPING, "%s: Found space "
969 "in the mapping for enclosure at map index "
970 "%d.\n", __func__, start_idx);
978 * If the enclosure's devices are not mapped already, look for
979 * contiguous entries in the mapping table that are not reserved. If
980 * enough entries are found, return the starting index for that space.
983 for (map_idx = (max_num_phy_ids + skip_count);
984 map_idx < end_of_table; map_idx++) {
985 mt_entry = &sc->mapping_table[map_idx];
986 if (!(mt_entry->device_info & MPR_DEV_RESERVED)) {
988 if (num_found == et_entry->num_slots) {
989 start_idx = (map_idx - num_found) + 1;
990 mpr_dprint(sc, MPR_MAPPING, "%s: Found space "
991 "in the mapping for enclosure at map index "
992 "%d.\n", __func__, start_idx);
1000 * If here, it means that not enough space in the mapping table was
1001 * found to support this enclosure, so go through the enclosure table to
1002 * see if any enclosure entries have a missing count. If so, get the
1003 * enclosure with the highest missing count and check it to see if there
1004 * is enough space for the new enclosure.
1006 while (!done_flag) {
1007 enc_idx = _mapping_get_high_missing_et_idx(sc);
1008 if (enc_idx == MPR_ENCTABLE_BAD_IDX) {
1009 mpr_dprint(sc, MPR_MAPPING, "%s: Not enough space was "
1010 "found in the mapping for the added enclosure.\n",
1012 return MPR_MAPTABLE_BAD_IDX;
1016 * Found a missing enclosure. Set the skip_search flag so this
1017 * enclosure is not checked again for a high missing count if
1018 * the loop continues. This way, all missing enclosures can
1019 * have their space added together to find enough space in the
1020 * mapping table for the added enclosure. The space must be
1023 mpr_dprint(sc, MPR_MAPPING, "%s: Space from a missing "
1024 "enclosure was found.\n", __func__);
1025 enc_entry = &sc->enclosure_table[enc_idx];
1026 enc_entry->skip_search = 1;
1029 * Unmark all of the missing enclosure's device's reserved
1030 * space. These will be remarked as reserved if this missing
1031 * enclosure's space is not used.
1033 mpr_dprint(sc, MPR_MAPPING, "%s: Clear the reserved flag for "
1034 "all of the map entries for the enclosure.\n", __func__);
1035 mt_entry = &sc->mapping_table[enc_entry->start_index];
1036 for (map_idx = enc_entry->start_index; map_idx <
1037 (enc_entry->start_index + enc_entry->num_slots); map_idx++,
1039 mt_entry->device_info &= ~MPR_DEV_RESERVED;
1042 * Now that space has been unreserved, check again to see if
1043 * enough space is available for the new enclosure.
1045 mpr_dprint(sc, MPR_MAPPING, "%s: Check if new mapping space is "
1046 "enough for the new enclosure.\n", __func__);
1049 for (map_idx = (max_num_phy_ids + skip_count);
1050 map_idx < end_of_table; map_idx++) {
1051 mt_entry = &sc->mapping_table[map_idx];
1052 if (!(mt_entry->device_info & MPR_DEV_RESERVED)) {
1054 if (num_found == et_entry->num_slots) {
1055 start_idx = (map_idx - num_found) + 1;
1066 * If enough space was found, all of the missing enclosures that
1067 * will be used for the new enclosure must be added to the
1068 * removal table. Then all mappings for the enclosure's devices
1069 * and for the enclosure itself need to be cleared. There may be
1070 * more than one enclosure to add to the removal table and
1073 mpr_dprint(sc, MPR_MAPPING, "%s: Found space in the mapping "
1074 "for enclosure at map index %d.\n", __func__, start_idx);
1075 for (map_idx = start_idx; map_idx < (start_idx + num_found);
1077 enc_entry = sc->enclosure_table;
1078 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries;
1079 enc_idx++, enc_entry++) {
1080 if (map_idx < enc_entry->start_index ||
1081 map_idx > (enc_entry->start_index +
1082 enc_entry->num_slots))
1084 if (!enc_entry->removal_flag) {
1085 mpr_dprint(sc, MPR_MAPPING, "%s: "
1086 "Enclosure %d will be removed from "
1087 "the mapping table.\n", __func__,
1089 enc_entry->removal_flag = 1;
1090 _mapping_add_to_removal_table(sc,
1091 enc_entry->dpm_entry_num);
1093 mt_entry = &sc->mapping_table[map_idx];
1094 _mapping_clear_map_entry(mt_entry);
1095 if (map_idx == (enc_entry->start_index +
1096 enc_entry->num_slots - 1))
1097 _mapping_clear_enc_entry(et_entry);
1102 * During the search for space for this enclosure, some entries
1103 * in the mapping table may have been unreserved. Go back and
1104 * change all of these to reserved again. Only the enclosures
1105 * with the removal_flag set should be left as unreserved. The
1106 * skip_search flag needs to be cleared as well so that the
1107 * enclosure's space will be looked at the next time space is
1110 enc_entry = sc->enclosure_table;
1111 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries;
1112 enc_idx++, enc_entry++) {
1113 if (!enc_entry->removal_flag) {
1114 mpr_dprint(sc, MPR_MAPPING, "%s: Reset the "
1115 "reserved flag for all of the map entries "
1116 "for enclosure %d.\n", __func__, enc_idx);
1117 mt_entry = &sc->mapping_table[enc_entry->
1119 for (map_idx = enc_entry->start_index; map_idx <
1120 (enc_entry->start_index +
1121 enc_entry->num_slots); map_idx++,
1123 mt_entry->device_info |=
1125 et_entry->skip_search = 0;
1134 * _mapping_get_dev_info -get information about newly added devices
1135 * @sc: per adapter object
1136 * @topo_change: Topology change event entry
1138 * Search through the topology change event list and issues sas device pg0
1139 * requests for the newly added device and reserved entries in tables
1144 _mapping_get_dev_info(struct mpr_softc *sc,
1145 struct _map_topology_change *topo_change)
1147 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1148 Mpi2ConfigReply_t mpi_reply;
1149 Mpi2SasDevicePage0_t sas_device_pg0;
1150 u8 entry, enc_idx, phy_idx;
1151 u32 map_idx, index, device_info;
1152 struct _map_phy_change *phy_change, *tmp_phy_change;
1153 uint64_t sas_address;
1154 struct enc_mapping_table *et_entry;
1155 struct dev_mapping_table *mt_entry;
1156 u8 add_code = MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED;
1159 for (entry = 0; entry < topo_change->num_entries; entry++) {
1160 phy_change = &topo_change->phy_details[entry];
1161 if (phy_change->is_processed || !phy_change->dev_handle ||
1162 phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED)
1165 if (mpr_config_get_sas_device_pg0(sc, &mpi_reply,
1166 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1167 phy_change->dev_handle)) {
1168 phy_change->is_processed = 1;
1173 * Always get SATA Identify information because this is used
1174 * to determine if Start/Stop Unit should be sent to the drive
1175 * when the system is shutdown.
1177 device_info = le32toh(sas_device_pg0.DeviceInfo);
1178 sas_address = le32toh(sas_device_pg0.SASAddress.High);
1179 sas_address = (sas_address << 32) |
1180 le32toh(sas_device_pg0.SASAddress.Low);
1181 if ((device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE) &&
1182 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)) {
1183 rc = mprsas_get_sas_address_for_sata_disk(sc,
1184 &sas_address, phy_change->dev_handle, device_info,
1185 &phy_change->is_SATA_SSD);
1187 mpr_dprint(sc, MPR_ERROR, "%s: failed to get "
1188 "disk type (SSD or HDD) and SAS Address "
1189 "for SATA device with handle 0x%04x\n",
1190 __func__, phy_change->dev_handle);
1194 phy_change->physical_id = sas_address;
1195 phy_change->slot = le16toh(sas_device_pg0.Slot);
1196 phy_change->device_info = device_info;
1199 * When using Enc/Slot mapping, if this device is an enclosure
1200 * make sure that all of its slots can fit into the mapping
1203 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1204 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
1206 * The enclosure should already be in the enclosure
1207 * table due to the Enclosure Add event. If not, just
1208 * continue, nothing can be done.
1210 enc_idx = _mapping_get_enc_idx_from_handle(sc,
1211 topo_change->enc_handle);
1212 if (enc_idx == MPR_ENCTABLE_BAD_IDX) {
1213 phy_change->is_processed = 1;
1214 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1215 "failed to add the device with handle "
1216 "0x%04x because the enclosure is not in "
1217 "the mapping table\n", __func__,
1218 phy_change->dev_handle);
1221 if (!((phy_change->device_info &
1222 MPI2_SAS_DEVICE_INFO_END_DEVICE) &&
1223 (phy_change->device_info &
1224 (MPI2_SAS_DEVICE_INFO_SSP_TARGET |
1225 MPI2_SAS_DEVICE_INFO_STP_TARGET |
1226 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) {
1227 phy_change->is_processed = 1;
1230 et_entry = &sc->enclosure_table[enc_idx];
1233 * If the enclosure already has a start_index, it's been
1234 * mapped, so go to the next Topo change.
1236 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX)
1240 * If the Expander Handle is 0, the devices are direct
1241 * attached. In that case, the start_index must be just
1242 * after the reserved entries. Otherwise, find space in
1243 * the mapping table for the enclosure's devices.
1245 if (!topo_change->exp_handle) {
1246 map_idx = sc->num_rsvd_entries;
1247 et_entry->start_index = map_idx;
1249 map_idx = _mapping_find_enc_map_space(sc,
1251 et_entry->start_index = map_idx;
1254 * If space cannot be found to hold all of the
1255 * enclosure's devices in the mapping table,
1256 * there's no need to continue checking the
1257 * other devices in this event. Set all of the
1258 * phy_details for this event (if the change is
1259 * for an add) as already processed because none
1260 * of these devices can be added to the mapping
1263 if (et_entry->start_index ==
1264 MPR_MAPTABLE_BAD_IDX) {
1265 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING,
1266 "%s: failed to add the enclosure "
1267 "with ID 0x%016jx because there is "
1268 "no free space available in the "
1269 "mapping table for all of the "
1270 "enclosure's devices.\n", __func__,
1271 (uintmax_t)et_entry->enclosure_id);
1272 phy_change->is_processed = 1;
1273 for (phy_idx = 0; phy_idx <
1274 topo_change->num_entries;
1277 &topo_change->phy_details
1279 if (tmp_phy_change->reason ==
1289 * Found space in the mapping table for this enclosure.
1290 * Initialize each mapping table entry for the
1293 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map "
1294 "entries for the enclosure, starting at map index "
1295 " %d.\n", __func__, et_entry->num_slots, map_idx);
1296 mt_entry = &sc->mapping_table[map_idx];
1297 for (index = map_idx; index < (et_entry->num_slots
1298 + map_idx); index++, mt_entry++) {
1299 mt_entry->device_info = MPR_DEV_RESERVED;
1300 mt_entry->physical_id = et_entry->enclosure_id;
1301 mt_entry->phy_bits = et_entry->phy_bits;
1302 mt_entry->missing_count = 0;
1309 * _mapping_get_pcie_dev_info -get information about newly added PCIe devices
1310 * @sc: per adapter object
1311 * @topo_change: Topology change event entry
1313 * Searches through the PCIe topology change event list and issues PCIe device
1314 * pg0 requests for the newly added PCIe device. If the device is in an
1315 * enclosure, search for available space in the enclosure mapping table for the
1316 * device and reserve that space.
1321 _mapping_get_pcie_dev_info(struct mpr_softc *sc,
1322 struct _map_pcie_topology_change *topo_change)
1324 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1325 Mpi2ConfigReply_t mpi_reply;
1326 Mpi26PCIeDevicePage0_t pcie_device_pg0;
1327 u8 entry, enc_idx, port_idx;
1329 struct _map_port_change *port_change, *tmp_port_change;
1331 struct enc_mapping_table *et_entry;
1332 struct dev_mapping_table *mt_entry;
1333 u8 add_code = MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED;
1335 for (entry = 0; entry < topo_change->num_entries; entry++) {
1336 port_change = &topo_change->port_details[entry];
1337 if (port_change->is_processed || !port_change->dev_handle ||
1338 port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED)
1340 if (mpr_config_get_pcie_device_pg0(sc, &mpi_reply,
1341 &pcie_device_pg0, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
1342 port_change->dev_handle)) {
1343 port_change->is_processed = 1;
1347 pcie_wwid = pcie_device_pg0.WWID.High;
1348 pcie_wwid = (pcie_wwid << 32) | pcie_device_pg0.WWID.Low;
1349 port_change->physical_id = pcie_wwid;
1350 port_change->slot = le16toh(pcie_device_pg0.Slot);
1351 port_change->device_info = le32toh(pcie_device_pg0.DeviceInfo);
1354 * When using Enc/Slot mapping, if this device is an enclosure
1355 * make sure that all of its slots can fit into the mapping
1358 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1359 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
1361 * The enclosure should already be in the enclosure
1362 * table due to the Enclosure Add event. If not, just
1363 * continue, nothing can be done.
1365 enc_idx = _mapping_get_enc_idx_from_handle(sc,
1366 topo_change->enc_handle);
1367 if (enc_idx == MPR_ENCTABLE_BAD_IDX) {
1368 port_change->is_processed = 1;
1369 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1370 "failed to add the device with handle "
1371 "0x%04x because the enclosure is not in "
1372 "the mapping table\n", __func__,
1373 port_change->dev_handle);
1376 if (!(port_change->device_info &
1377 MPI26_PCIE_DEVINFO_NVME)) {
1378 port_change->is_processed = 1;
1381 et_entry = &sc->enclosure_table[enc_idx];
1384 * If the enclosure already has a start_index, it's been
1385 * mapped, so go to the next Topo change.
1387 if (et_entry->start_index != MPR_MAPTABLE_BAD_IDX)
1391 * If the Switch Handle is 0, the devices are direct
1392 * attached. In that case, the start_index must be just
1393 * after the reserved entries. Otherwise, find space in
1394 * the mapping table for the enclosure's devices.
1396 if (!topo_change->switch_dev_handle) {
1397 map_idx = sc->num_rsvd_entries;
1398 et_entry->start_index = map_idx;
1400 map_idx = _mapping_find_enc_map_space(sc,
1402 et_entry->start_index = map_idx;
1405 * If space cannot be found to hold all of the
1406 * enclosure's devices in the mapping table,
1407 * there's no need to continue checking the
1408 * other devices in this event. Set all of the
1409 * port_details for this event (if the change is
1410 * for an add) as already processed because none
1411 * of these devices can be added to the mapping
1414 if (et_entry->start_index ==
1415 MPR_MAPTABLE_BAD_IDX) {
1416 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING,
1417 "%s: failed to add the enclosure "
1418 "with ID 0x%016jx because there is "
1419 "no free space available in the "
1420 "mapping table for all of the "
1421 "enclosure's devices.\n", __func__,
1422 (uintmax_t)et_entry->enclosure_id);
1423 port_change->is_processed = 1;
1424 for (port_idx = 0; port_idx <
1425 topo_change->num_entries;
1428 &topo_change->port_details
1430 if (tmp_port_change->reason ==
1440 * Found space in the mapping table for this enclosure.
1441 * Initialize each mapping table entry for the
1444 mpr_dprint(sc, MPR_MAPPING, "%s: Initialize %d map "
1445 "entries for the enclosure, starting at map index "
1446 " %d.\n", __func__, et_entry->num_slots, map_idx);
1447 mt_entry = &sc->mapping_table[map_idx];
1448 for (index = map_idx; index < (et_entry->num_slots
1449 + map_idx); index++, mt_entry++) {
1450 mt_entry->device_info = MPR_DEV_RESERVED;
1451 mt_entry->physical_id = et_entry->enclosure_id;
1452 mt_entry->phy_bits = et_entry->phy_bits;
1453 mt_entry->missing_count = 0;
1460 * _mapping_set_mid_to_eid -set map table data from enclosure table
1461 * @sc: per adapter object
1462 * @et_entry: enclosure entry
1467 _mapping_set_mid_to_eid(struct mpr_softc *sc,
1468 struct enc_mapping_table *et_entry)
1470 struct dev_mapping_table *mt_entry;
1471 u16 slots = et_entry->num_slots, map_idx;
1472 u32 start_idx = et_entry->start_index;
1474 if (start_idx != MPR_MAPTABLE_BAD_IDX) {
1475 mt_entry = &sc->mapping_table[start_idx];
1476 for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++)
1477 mt_entry->physical_id = et_entry->enclosure_id;
1482 * _mapping_clear_removed_entries - mark the entries to be cleared
1483 * @sc: per adapter object
1485 * Search through the removal table and mark the entries which needs to be
1486 * flushed to DPM and also updates the map table and enclosure table by
1487 * clearing the corresponding entries.
1492 _mapping_clear_removed_entries(struct mpr_softc *sc)
1495 struct map_removal_table *remove_entry;
1496 Mpi2DriverMap0Entry_t *dpm_entry;
1497 u8 done_flag = 0, num_entries, m, i;
1498 struct enc_mapping_table *et_entry, *from, *to;
1499 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1501 if (sc->is_dpm_enable) {
1502 remove_entry = sc->removal_table;
1503 for (remove_idx = 0; remove_idx < sc->max_devices;
1504 remove_idx++, remove_entry++) {
1505 if (remove_entry->dpm_entry_num != MPR_DPM_BAD_IDX) {
1506 dpm_entry = (Mpi2DriverMap0Entry_t *)
1507 ((u8 *) sc->dpm_pg0 +
1508 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
1509 dpm_entry += remove_entry->dpm_entry_num;
1510 dpm_entry->PhysicalIdentifier.Low = 0;
1511 dpm_entry->PhysicalIdentifier.High = 0;
1512 dpm_entry->DeviceIndex = 0;
1513 dpm_entry->MappingInformation = 0;
1514 dpm_entry->PhysicalBitsMapping = 0;
1515 sc->dpm_flush_entry[remove_entry->
1517 sc->dpm_entry_used[remove_entry->dpm_entry_num]
1519 remove_entry->dpm_entry_num = MPR_DPM_BAD_IDX;
1525 * When using Enc/Slot mapping, if a new enclosure was added and old
1526 * enclosure space was needed, the enclosure table may now have gaps
1527 * that need to be closed. All enclosure mappings need to be contiguous
1528 * so that space can be reused correctly if available.
1530 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1531 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
1532 num_entries = sc->num_enc_table_entries;
1533 while (!done_flag) {
1535 et_entry = sc->enclosure_table;
1536 for (i = 0; i < num_entries; i++, et_entry++) {
1537 if (!et_entry->enc_handle && et_entry->
1540 if (i != (num_entries - 1)) {
1541 from = &sc->enclosure_table
1543 to = &sc->enclosure_table[i];
1544 for (m = i; m < (num_entries -
1545 1); m++, from++, to++) {
1546 _mapping_set_mid_to_eid
1550 _mapping_clear_enc_entry(to);
1551 sc->num_enc_table_entries--;
1553 sc->num_enc_table_entries;
1555 _mapping_clear_enc_entry
1557 sc->num_enc_table_entries--;
1559 sc->num_enc_table_entries;
1568 * _mapping_add_new_device -Add the new device into mapping table
1569 * @sc: per adapter object
1570 * @topo_change: Topology change event entry
1572 * Search through the topology change event list and update map table,
1573 * enclosure table and DPM pages for the newly added devices.
1578 _mapping_add_new_device(struct mpr_softc *sc,
1579 struct _map_topology_change *topo_change)
1581 u8 enc_idx, missing_cnt, is_removed = 0;
1583 u32 search_idx, map_idx;
1585 struct dev_mapping_table *mt_entry;
1586 struct enc_mapping_table *et_entry;
1587 struct _map_phy_change *phy_change;
1588 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1589 Mpi2DriverMap0Entry_t *dpm_entry;
1590 uint64_t temp64_var;
1591 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
1592 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER);
1593 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
1595 for (entry = 0; entry < topo_change->num_entries; entry++) {
1596 phy_change = &topo_change->phy_details[entry];
1597 if (phy_change->is_processed)
1599 if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED ||
1600 !phy_change->dev_handle) {
1601 phy_change->is_processed = 1;
1604 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1605 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
1606 enc_idx = _mapping_get_enc_idx_from_handle
1607 (sc, topo_change->enc_handle);
1608 if (enc_idx == MPR_ENCTABLE_BAD_IDX) {
1609 phy_change->is_processed = 1;
1610 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1611 "failed to add the device with handle "
1612 "0x%04x because the enclosure is not in "
1613 "the mapping table\n", __func__,
1614 phy_change->dev_handle);
1619 * If the enclosure's start_index is BAD here, it means
1620 * that there is no room in the mapping table to cover
1621 * all of the devices that could be in the enclosure.
1622 * There's no reason to process any of the devices for
1623 * this enclosure since they can't be mapped.
1625 et_entry = &sc->enclosure_table[enc_idx];
1626 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) {
1627 phy_change->is_processed = 1;
1628 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1629 "failed to add the device with handle "
1630 "0x%04x because there is no free space "
1631 "available in the mapping table\n",
1632 __func__, phy_change->dev_handle);
1637 * Add this device to the mapping table at the correct
1638 * offset where space was found to map the enclosure.
1639 * Then setup the DPM entry information if being used.
1641 map_idx = et_entry->start_index + phy_change->slot -
1642 et_entry->start_slot;
1643 mt_entry = &sc->mapping_table[map_idx];
1644 mt_entry->physical_id = phy_change->physical_id;
1645 mt_entry->id = map_idx;
1646 mt_entry->dev_handle = phy_change->dev_handle;
1647 mt_entry->missing_count = 0;
1648 mt_entry->dpm_entry_num = et_entry->dpm_entry_num;
1649 mt_entry->device_info = phy_change->device_info |
1650 (MPR_DEV_RESERVED | MPR_MAP_IN_USE);
1651 if (sc->is_dpm_enable) {
1652 dpm_idx = et_entry->dpm_entry_num;
1653 if (dpm_idx == MPR_DPM_BAD_IDX)
1654 dpm_idx = _mapping_get_dpm_idx_from_id
1655 (sc, et_entry->enclosure_id,
1656 et_entry->phy_bits);
1657 if (dpm_idx == MPR_DPM_BAD_IDX) {
1658 dpm_idx = _mapping_get_free_dpm_idx(sc);
1659 if (dpm_idx != MPR_DPM_BAD_IDX) {
1661 (Mpi2DriverMap0Entry_t *)
1662 ((u8 *) sc->dpm_pg0 +
1664 dpm_entry += dpm_idx;
1666 PhysicalIdentifier.Low =
1668 et_entry->enclosure_id);
1670 PhysicalIdentifier.High =
1671 (et_entry->enclosure_id
1673 dpm_entry->DeviceIndex =
1674 (U16)et_entry->start_index;
1675 dpm_entry->MappingInformation =
1676 et_entry->num_slots;
1677 dpm_entry->MappingInformation
1679 dpm_entry->PhysicalBitsMapping
1680 = et_entry->phy_bits;
1681 et_entry->dpm_entry_num =
1683 sc->dpm_entry_used[dpm_idx] = 1;
1684 sc->dpm_flush_entry[dpm_idx] =
1686 phy_change->is_processed = 1;
1688 phy_change->is_processed = 1;
1689 mpr_dprint(sc, MPR_ERROR |
1690 MPR_MAPPING, "%s: failed "
1691 "to add the device with "
1693 "persistent table because "
1694 "there is no free space "
1695 "available\n", __func__,
1696 phy_change->dev_handle);
1699 et_entry->dpm_entry_num = dpm_idx;
1700 mt_entry->dpm_entry_num = dpm_idx;
1703 et_entry->init_complete = 1;
1704 } else if ((ioc_pg8_flags &
1705 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1706 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
1709 * Get the mapping table index for this device. If it's
1710 * not in the mapping table yet, find a free entry if
1711 * one is available. If there are no free entries, look
1712 * for the entry that has the highest missing count. If
1713 * none of that works to find an entry in the mapping
1714 * table, there is a problem. Log a message and just
1717 map_idx = _mapping_get_mt_idx_from_id
1718 (sc, phy_change->physical_id);
1719 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
1720 search_idx = sc->num_rsvd_entries;
1721 if (topo_change->exp_handle)
1722 search_idx += max_num_phy_ids;
1723 map_idx = _mapping_get_free_mt_idx(sc,
1728 * If an entry will be used that has a missing device,
1729 * clear its entry from the DPM in the controller.
1731 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
1732 map_idx = _mapping_get_high_missing_mt_idx(sc);
1733 if (map_idx != MPR_MAPTABLE_BAD_IDX) {
1734 mt_entry = &sc->mapping_table[map_idx];
1735 _mapping_add_to_removal_table(sc,
1736 mt_entry->dpm_entry_num);
1738 mt_entry->init_complete = 0;
1741 if (map_idx != MPR_MAPTABLE_BAD_IDX) {
1742 mt_entry = &sc->mapping_table[map_idx];
1743 mt_entry->physical_id = phy_change->physical_id;
1744 mt_entry->id = map_idx;
1745 mt_entry->dev_handle = phy_change->dev_handle;
1746 mt_entry->missing_count = 0;
1747 mt_entry->device_info = phy_change->device_info
1748 | (MPR_DEV_RESERVED | MPR_MAP_IN_USE);
1750 phy_change->is_processed = 1;
1751 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1752 "failed to add the device with handle "
1753 "0x%04x because there is no free space "
1754 "available in the mapping table\n",
1755 __func__, phy_change->dev_handle);
1758 if (sc->is_dpm_enable) {
1759 if (mt_entry->dpm_entry_num !=
1761 dpm_idx = mt_entry->dpm_entry_num;
1762 dpm_entry = (Mpi2DriverMap0Entry_t *)
1763 ((u8 *)sc->dpm_pg0 + hdr_sz);
1764 dpm_entry += dpm_idx;
1765 missing_cnt = dpm_entry->
1766 MappingInformation &
1767 MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
1768 temp64_var = dpm_entry->
1769 PhysicalIdentifier.High;
1770 temp64_var = (temp64_var << 32) |
1771 dpm_entry->PhysicalIdentifier.Low;
1774 * If the Mapping Table's info is not
1775 * the same as the DPM entry, clear the
1776 * init_complete flag so that it's
1779 if ((mt_entry->physical_id ==
1780 temp64_var) && !missing_cnt)
1781 mt_entry->init_complete = 1;
1783 mt_entry->init_complete = 0;
1785 dpm_idx = _mapping_get_free_dpm_idx(sc);
1786 mt_entry->init_complete = 0;
1788 if (dpm_idx != MPR_DPM_BAD_IDX &&
1789 !mt_entry->init_complete) {
1790 mt_entry->dpm_entry_num = dpm_idx;
1791 dpm_entry = (Mpi2DriverMap0Entry_t *)
1792 ((u8 *)sc->dpm_pg0 + hdr_sz);
1793 dpm_entry += dpm_idx;
1794 dpm_entry->PhysicalIdentifier.Low =
1796 mt_entry->physical_id);
1797 dpm_entry->PhysicalIdentifier.High =
1798 (mt_entry->physical_id >> 32);
1799 dpm_entry->DeviceIndex = (U16) map_idx;
1800 dpm_entry->MappingInformation = 0;
1801 dpm_entry->PhysicalBitsMapping = 0;
1802 sc->dpm_entry_used[dpm_idx] = 1;
1803 sc->dpm_flush_entry[dpm_idx] = 1;
1804 phy_change->is_processed = 1;
1805 } else if (dpm_idx == MPR_DPM_BAD_IDX) {
1806 phy_change->is_processed = 1;
1807 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING,
1808 "%s: failed to add the device with "
1809 "handle 0x%04x to persistent table "
1810 "because there is no free space "
1811 "available\n", __func__,
1812 phy_change->dev_handle);
1815 mt_entry->init_complete = 1;
1818 phy_change->is_processed = 1;
1821 _mapping_clear_removed_entries(sc);
1825 * _mapping_add_new_pcie_device -Add the new PCIe device into mapping table
1826 * @sc: per adapter object
1827 * @topo_change: Topology change event entry
1829 * Search through the PCIe topology change event list and update map table,
1830 * enclosure table and DPM pages for the newly added devices.
1835 _mapping_add_new_pcie_device(struct mpr_softc *sc,
1836 struct _map_pcie_topology_change *topo_change)
1838 u8 enc_idx, missing_cnt, is_removed = 0;
1840 u32 search_idx, map_idx;
1842 struct dev_mapping_table *mt_entry;
1843 struct enc_mapping_table *et_entry;
1844 struct _map_port_change *port_change;
1845 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1846 Mpi2DriverMap0Entry_t *dpm_entry;
1847 uint64_t temp64_var;
1848 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
1849 u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER);
1850 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
1852 for (entry = 0; entry < topo_change->num_entries; entry++) {
1853 port_change = &topo_change->port_details[entry];
1854 if (port_change->is_processed)
1856 if (port_change->reason != MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED ||
1857 !port_change->dev_handle) {
1858 port_change->is_processed = 1;
1861 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1862 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
1863 enc_idx = _mapping_get_enc_idx_from_handle
1864 (sc, topo_change->enc_handle);
1865 if (enc_idx == MPR_ENCTABLE_BAD_IDX) {
1866 port_change->is_processed = 1;
1867 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1868 "failed to add the device with handle "
1869 "0x%04x because the enclosure is not in "
1870 "the mapping table\n", __func__,
1871 port_change->dev_handle);
1876 * If the enclosure's start_index is BAD here, it means
1877 * that there is no room in the mapping table to cover
1878 * all of the devices that could be in the enclosure.
1879 * There's no reason to process any of the devices for
1880 * this enclosure since they can't be mapped.
1882 et_entry = &sc->enclosure_table[enc_idx];
1883 if (et_entry->start_index == MPR_MAPTABLE_BAD_IDX) {
1884 port_change->is_processed = 1;
1885 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
1886 "failed to add the device with handle "
1887 "0x%04x because there is no free space "
1888 "available in the mapping table\n",
1889 __func__, port_change->dev_handle);
1894 * Add this device to the mapping table at the correct
1895 * offset where space was found to map the enclosure.
1896 * Then setup the DPM entry information if being used.
1898 map_idx = et_entry->start_index + port_change->slot -
1899 et_entry->start_slot;
1900 mt_entry = &sc->mapping_table[map_idx];
1901 mt_entry->physical_id = port_change->physical_id;
1902 mt_entry->id = map_idx;
1903 mt_entry->dev_handle = port_change->dev_handle;
1904 mt_entry->missing_count = 0;
1905 mt_entry->dpm_entry_num = et_entry->dpm_entry_num;
1906 mt_entry->device_info = port_change->device_info |
1907 (MPR_DEV_RESERVED | MPR_MAP_IN_USE);
1908 if (sc->is_dpm_enable) {
1909 dpm_idx = et_entry->dpm_entry_num;
1910 if (dpm_idx == MPR_DPM_BAD_IDX)
1911 dpm_idx = _mapping_get_dpm_idx_from_id
1912 (sc, et_entry->enclosure_id,
1913 et_entry->phy_bits);
1914 if (dpm_idx == MPR_DPM_BAD_IDX) {
1915 dpm_idx = _mapping_get_free_dpm_idx(sc);
1916 if (dpm_idx != MPR_DPM_BAD_IDX) {
1918 (Mpi2DriverMap0Entry_t *)
1919 ((u8 *) sc->dpm_pg0 +
1921 dpm_entry += dpm_idx;
1923 PhysicalIdentifier.Low =
1925 et_entry->enclosure_id);
1927 PhysicalIdentifier.High =
1928 (et_entry->enclosure_id
1930 dpm_entry->DeviceIndex =
1931 (U16)et_entry->start_index;
1932 dpm_entry->MappingInformation =
1933 et_entry->num_slots;
1934 dpm_entry->MappingInformation
1936 dpm_entry->PhysicalBitsMapping
1937 = et_entry->phy_bits;
1938 et_entry->dpm_entry_num =
1940 sc->dpm_entry_used[dpm_idx] = 1;
1941 sc->dpm_flush_entry[dpm_idx] =
1943 port_change->is_processed = 1;
1945 port_change->is_processed = 1;
1946 mpr_dprint(sc, MPR_ERROR |
1947 MPR_MAPPING, "%s: failed "
1948 "to add the device with "
1950 "persistent table because "
1951 "there is no free space "
1952 "available\n", __func__,
1953 port_change->dev_handle);
1956 et_entry->dpm_entry_num = dpm_idx;
1957 mt_entry->dpm_entry_num = dpm_idx;
1960 et_entry->init_complete = 1;
1961 } else if ((ioc_pg8_flags &
1962 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
1963 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
1966 * Get the mapping table index for this device. If it's
1967 * not in the mapping table yet, find a free entry if
1968 * one is available. If there are no free entries, look
1969 * for the entry that has the highest missing count. If
1970 * none of that works to find an entry in the mapping
1971 * table, there is a problem. Log a message and just
1974 map_idx = _mapping_get_mt_idx_from_id
1975 (sc, port_change->physical_id);
1976 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
1977 search_idx = sc->num_rsvd_entries;
1978 if (topo_change->switch_dev_handle)
1979 search_idx += max_num_phy_ids;
1980 map_idx = _mapping_get_free_mt_idx(sc,
1985 * If an entry will be used that has a missing device,
1986 * clear its entry from the DPM in the controller.
1988 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
1989 map_idx = _mapping_get_high_missing_mt_idx(sc);
1990 if (map_idx != MPR_MAPTABLE_BAD_IDX) {
1991 mt_entry = &sc->mapping_table[map_idx];
1992 _mapping_add_to_removal_table(sc,
1993 mt_entry->dpm_entry_num);
1995 mt_entry->init_complete = 0;
1998 if (map_idx != MPR_MAPTABLE_BAD_IDX) {
1999 mt_entry = &sc->mapping_table[map_idx];
2000 mt_entry->physical_id =
2001 port_change->physical_id;
2002 mt_entry->id = map_idx;
2003 mt_entry->dev_handle = port_change->dev_handle;
2004 mt_entry->missing_count = 0;
2005 mt_entry->device_info =
2006 port_change->device_info |
2007 (MPR_DEV_RESERVED | MPR_MAP_IN_USE);
2009 port_change->is_processed = 1;
2010 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
2011 "failed to add the device with handle "
2012 "0x%04x because there is no free space "
2013 "available in the mapping table\n",
2014 __func__, port_change->dev_handle);
2017 if (sc->is_dpm_enable) {
2018 if (mt_entry->dpm_entry_num !=
2020 dpm_idx = mt_entry->dpm_entry_num;
2021 dpm_entry = (Mpi2DriverMap0Entry_t *)
2022 ((u8 *)sc->dpm_pg0 + hdr_sz);
2023 dpm_entry += dpm_idx;
2024 missing_cnt = dpm_entry->
2025 MappingInformation &
2026 MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
2027 temp64_var = dpm_entry->
2028 PhysicalIdentifier.High;
2029 temp64_var = (temp64_var << 32) |
2030 dpm_entry->PhysicalIdentifier.Low;
2033 * If the Mapping Table's info is not
2034 * the same as the DPM entry, clear the
2035 * init_complete flag so that it's
2038 if ((mt_entry->physical_id ==
2039 temp64_var) && !missing_cnt)
2040 mt_entry->init_complete = 1;
2042 mt_entry->init_complete = 0;
2044 dpm_idx = _mapping_get_free_dpm_idx(sc);
2045 mt_entry->init_complete = 0;
2047 if (dpm_idx != MPR_DPM_BAD_IDX &&
2048 !mt_entry->init_complete) {
2049 mt_entry->dpm_entry_num = dpm_idx;
2050 dpm_entry = (Mpi2DriverMap0Entry_t *)
2051 ((u8 *)sc->dpm_pg0 + hdr_sz);
2052 dpm_entry += dpm_idx;
2053 dpm_entry->PhysicalIdentifier.Low =
2055 mt_entry->physical_id);
2056 dpm_entry->PhysicalIdentifier.High =
2057 (mt_entry->physical_id >> 32);
2058 dpm_entry->DeviceIndex = (U16) map_idx;
2059 dpm_entry->MappingInformation = 0;
2060 dpm_entry->PhysicalBitsMapping = 0;
2061 sc->dpm_entry_used[dpm_idx] = 1;
2062 sc->dpm_flush_entry[dpm_idx] = 1;
2063 port_change->is_processed = 1;
2064 } else if (dpm_idx == MPR_DPM_BAD_IDX) {
2065 port_change->is_processed = 1;
2066 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING,
2067 "%s: failed to add the device with "
2068 "handle 0x%04x to persistent table "
2069 "because there is no free space "
2070 "available\n", __func__,
2071 port_change->dev_handle);
2074 mt_entry->init_complete = 1;
2077 port_change->is_processed = 1;
2080 _mapping_clear_removed_entries(sc);
2084 * _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM
2085 * @sc: per adapter object
2090 _mapping_flush_dpm_pages(struct mpr_softc *sc)
2092 Mpi2DriverMap0Entry_t *dpm_entry;
2093 Mpi2ConfigReply_t mpi_reply;
2094 Mpi2DriverMappingPage0_t config_page;
2097 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) {
2098 if (!sc->dpm_flush_entry[entry_num])
2100 memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t));
2101 memcpy(&config_page.Header, (u8 *)sc->dpm_pg0,
2102 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
2103 dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 +
2104 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
2105 dpm_entry += entry_num;
2106 dpm_entry->MappingInformation = htole16(dpm_entry->
2107 MappingInformation);
2108 dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex);
2109 dpm_entry->PhysicalBitsMapping = htole32(dpm_entry->
2110 PhysicalBitsMapping);
2111 memcpy(&config_page.Entry, (u8 *)dpm_entry,
2112 sizeof(Mpi2DriverMap0Entry_t));
2113 /* TODO-How to handle failed writes? */
2114 mpr_dprint(sc, MPR_MAPPING, "%s: Flushing DPM entry %d.\n",
2115 __func__, entry_num);
2116 if (mpr_config_set_dpm_pg0(sc, &mpi_reply, &config_page,
2118 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Flush of "
2119 "DPM entry %d for device failed\n", __func__,
2122 sc->dpm_flush_entry[entry_num] = 0;
2123 dpm_entry->MappingInformation = le16toh(dpm_entry->
2124 MappingInformation);
2125 dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
2126 dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry->
2127 PhysicalBitsMapping);
2132 * _mapping_allocate_memory- allocates the memory required for mapping tables
2133 * @sc: per adapter object
2135 * Allocates the memory for all the tables required for host mapping
2137 * Return 0 on success or non-zero on failure.
2140 mpr_mapping_allocate_memory(struct mpr_softc *sc)
2142 uint32_t dpm_pg0_sz;
2144 sc->mapping_table = malloc((sizeof(struct dev_mapping_table) *
2145 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT);
2146 if (!sc->mapping_table)
2147 goto free_resources;
2149 sc->removal_table = malloc((sizeof(struct map_removal_table) *
2150 sc->max_devices), M_MPR, M_ZERO|M_NOWAIT);
2151 if (!sc->removal_table)
2152 goto free_resources;
2154 sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) *
2155 sc->max_enclosures), M_MPR, M_ZERO|M_NOWAIT);
2156 if (!sc->enclosure_table)
2157 goto free_resources;
2159 sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries),
2160 M_MPR, M_ZERO|M_NOWAIT);
2161 if (!sc->dpm_entry_used)
2162 goto free_resources;
2164 sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries),
2165 M_MPR, M_ZERO|M_NOWAIT);
2166 if (!sc->dpm_flush_entry)
2167 goto free_resources;
2169 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) +
2170 (sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY));
2172 sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPR, M_ZERO|M_NOWAIT);
2174 printf("%s: memory alloc failed for dpm page; disabling dpm\n",
2176 sc->is_dpm_enable = 0;
2182 free(sc->mapping_table, M_MPR);
2183 free(sc->removal_table, M_MPR);
2184 free(sc->enclosure_table, M_MPR);
2185 free(sc->dpm_entry_used, M_MPR);
2186 free(sc->dpm_flush_entry, M_MPR);
2187 free(sc->dpm_pg0, M_MPR);
2188 printf("%s: device initialization failed due to failure in mapping "
2189 "table memory allocation\n", __func__);
2194 * mpr_mapping_free_memory- frees the memory allocated for mapping tables
2195 * @sc: per adapter object
2200 mpr_mapping_free_memory(struct mpr_softc *sc)
2202 free(sc->mapping_table, M_MPR);
2203 free(sc->removal_table, M_MPR);
2204 free(sc->enclosure_table, M_MPR);
2205 free(sc->dpm_entry_used, M_MPR);
2206 free(sc->dpm_flush_entry, M_MPR);
2207 free(sc->dpm_pg0, M_MPR);
2211 _mapping_process_dpm_pg0(struct mpr_softc *sc)
2213 u8 missing_cnt, enc_idx;
2214 u16 slot_id, entry_num, num_slots;
2215 u32 map_idx, dev_idx, start_idx, end_idx;
2216 struct dev_mapping_table *mt_entry;
2217 Mpi2DriverMap0Entry_t *dpm_entry;
2218 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
2219 u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
2220 struct enc_mapping_table *et_entry;
2225 * start_idx and end_idx are only used for IR.
2227 if (sc->ir_firmware)
2228 _mapping_get_ir_maprange(sc, &start_idx, &end_idx);
2231 * Look through all of the DPM entries that were read from the
2232 * controller and copy them over to the driver's internal table if they
2233 * have a non-zero ID. At this point, any ID with a value of 0 would be
2234 * invalid, so don't copy it.
2236 mpr_dprint(sc, MPR_MAPPING, "%s: Start copy of %d DPM entries into the "
2237 "mapping table.\n", __func__, sc->max_dpm_entries);
2238 dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 +
2239 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
2240 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++,
2242 physical_id = dpm_entry->PhysicalIdentifier.High;
2243 physical_id = (physical_id << 32) |
2244 dpm_entry->PhysicalIdentifier.Low;
2246 sc->dpm_entry_used[entry_num] = 0;
2249 sc->dpm_entry_used[entry_num] = 1;
2250 dpm_entry->MappingInformation = le16toh(dpm_entry->
2251 MappingInformation);
2252 missing_cnt = dpm_entry->MappingInformation &
2253 MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
2254 dev_idx = le16toh(dpm_entry->DeviceIndex);
2255 phy_bits = le32toh(dpm_entry->PhysicalBitsMapping);
2258 * Volumes are at special locations in the mapping table so
2259 * account for that. Volume mapping table entries do not depend
2260 * on the type of mapping, so continue the loop after adding
2261 * volumes to the mapping table.
2263 if (sc->ir_firmware && (dev_idx >= start_idx) &&
2264 (dev_idx <= end_idx)) {
2265 mt_entry = &sc->mapping_table[dev_idx];
2266 mt_entry->physical_id =
2267 dpm_entry->PhysicalIdentifier.High;
2268 mt_entry->physical_id = (mt_entry->physical_id << 32) |
2269 dpm_entry->PhysicalIdentifier.Low;
2270 mt_entry->id = dev_idx;
2271 mt_entry->missing_count = missing_cnt;
2272 mt_entry->dpm_entry_num = entry_num;
2273 mt_entry->device_info = MPR_DEV_RESERVED;
2276 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
2277 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
2280 * The dev_idx for an enclosure is the start index. If
2281 * the start index is within the controller's default
2282 * enclosure area, set the number of slots for this
2283 * enclosure to the max allowed. Otherwise, it should be
2284 * a normal enclosure and the number of slots is in the
2285 * DPM entry's Mapping Information.
2287 if (dev_idx < (sc->num_rsvd_entries +
2291 MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1)
2293 num_slots = max_num_phy_ids;
2296 num_slots = dpm_entry->MappingInformation &
2297 MPI2_DRVMAP0_MAPINFO_SLOT_MASK;
2298 num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
2300 enc_idx = sc->num_enc_table_entries;
2301 if (enc_idx >= sc->max_enclosures) {
2302 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
2303 "Number of enclosure entries in DPM exceed "
2304 "the max allowed of %d.\n", __func__,
2305 sc->max_enclosures);
2308 sc->num_enc_table_entries++;
2309 et_entry = &sc->enclosure_table[enc_idx];
2310 physical_id = dpm_entry->PhysicalIdentifier.High;
2311 et_entry->enclosure_id = (physical_id << 32) |
2312 dpm_entry->PhysicalIdentifier.Low;
2313 et_entry->start_index = dev_idx;
2314 et_entry->dpm_entry_num = entry_num;
2315 et_entry->num_slots = num_slots;
2316 et_entry->start_slot = slot_id;
2317 et_entry->missing_count = missing_cnt;
2318 et_entry->phy_bits = phy_bits;
2321 * Initialize all entries for this enclosure in the
2322 * mapping table and mark them as reserved. The actual
2323 * devices have not been processed yet but when they are
2324 * they will use these entries. If an entry is found
2325 * that already has a valid DPM index, the mapping table
2326 * is corrupt. This can happen if the mapping type is
2327 * changed without clearing all of the DPM entries in
2330 mt_entry = &sc->mapping_table[dev_idx];
2331 for (map_idx = dev_idx; map_idx < (dev_idx + num_slots);
2332 map_idx++, mt_entry++) {
2333 if (mt_entry->dpm_entry_num !=
2335 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING,
2336 "%s: Conflict in mapping table for "
2337 " enclosure %d\n", __func__,
2342 dpm_entry->PhysicalIdentifier.High;
2343 mt_entry->physical_id = (physical_id << 32) |
2344 dpm_entry->PhysicalIdentifier.Low;
2345 mt_entry->phy_bits = phy_bits;
2346 mt_entry->id = dev_idx;
2347 mt_entry->dpm_entry_num = entry_num;
2348 mt_entry->missing_count = missing_cnt;
2349 mt_entry->device_info = MPR_DEV_RESERVED;
2351 } else if ((ioc_pg8_flags &
2352 MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
2353 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
2356 * Device mapping, so simply copy the DPM entries to the
2357 * mapping table, but check for a corrupt mapping table
2358 * (as described above in Enc/Slot mapping).
2361 mt_entry = &sc->mapping_table[map_idx];
2362 if (mt_entry->dpm_entry_num != MPR_DPM_BAD_IDX) {
2363 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
2364 "Conflict in mapping table for device %d\n",
2368 physical_id = dpm_entry->PhysicalIdentifier.High;
2369 mt_entry->physical_id = (physical_id << 32) |
2370 dpm_entry->PhysicalIdentifier.Low;
2371 mt_entry->phy_bits = phy_bits;
2372 mt_entry->id = dev_idx;
2373 mt_entry->missing_count = missing_cnt;
2374 mt_entry->dpm_entry_num = entry_num;
2375 mt_entry->device_info = MPR_DEV_RESERVED;
2377 } /*close the loop for DPM table */
2381 for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) {
2382 sc->dpm_entry_used[entry_num] = 0;
2384 * for IR firmware, it may be necessary to wipe out
2385 * sc->mapping_table volumes tooi
2388 for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++)
2389 _mapping_clear_enc_entry(sc->enclosure_table + enc_idx);
2390 sc->num_enc_table_entries = 0;
2395 * mpr_mapping_check_devices - start of the day check for device availabilty
2396 * @sc: per adapter object
2401 mpr_mapping_check_devices(void *data)
2404 struct dev_mapping_table *mt_entry;
2405 struct mpr_softc *sc = (struct mpr_softc *)data;
2406 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
2407 struct enc_mapping_table *et_entry;
2408 u32 start_idx = 0, end_idx = 0;
2409 u8 stop_device_checks = 0;
2414 * Clear this flag so that this function is never called again except
2415 * within this function if the check needs to be done again. The
2416 * purpose is to check for missing devices that are currently in the
2417 * mapping table so do this only at driver init after discovery.
2419 sc->track_mapping_events = 0;
2422 * callout synchronization
2423 * This is used to prevent race conditions for the callout.
2425 mpr_dprint(sc, MPR_MAPPING, "%s: Start check for missing devices.\n",
2427 mtx_assert(&sc->mpr_mtx, MA_OWNED);
2428 if ((callout_pending(&sc->device_check_callout)) ||
2429 (!callout_active(&sc->device_check_callout))) {
2430 mpr_dprint(sc, MPR_MAPPING, "%s: Device Check Callout is "
2431 "already pending or not active.\n", __func__);
2434 callout_deactivate(&sc->device_check_callout);
2437 * Use callout to check if any devices in the mapping table have been
2438 * processed yet. If ALL devices are marked as not init_complete, no
2439 * devices have been processed and mapped. Until devices are mapped
2440 * there's no reason to mark them as missing. Continue resetting this
2441 * callout until devices have been mapped.
2443 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
2444 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
2445 et_entry = sc->enclosure_table;
2446 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) {
2447 if (et_entry->init_complete) {
2448 stop_device_checks = 1;
2452 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
2453 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
2454 mt_entry = sc->mapping_table;
2455 for (i = 0; i < sc->max_devices; i++, mt_entry++) {
2456 if (mt_entry->init_complete) {
2457 stop_device_checks = 1;
2464 * Setup another callout check after a delay. Keep doing this until
2465 * devices are mapped.
2467 if (!stop_device_checks) {
2468 mpr_dprint(sc, MPR_MAPPING, "%s: No devices have been mapped. "
2469 "Reset callout to check again after a %d second delay.\n",
2470 __func__, MPR_MISSING_CHECK_DELAY);
2471 callout_reset(&sc->device_check_callout,
2472 MPR_MISSING_CHECK_DELAY * hz, mpr_mapping_check_devices,
2476 mpr_dprint(sc, MPR_MAPPING, "%s: Device check complete.\n", __func__);
2479 * Depending on the mapping type, check if devices have been processed
2480 * and update their missing counts if not processed.
2482 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
2483 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
2484 et_entry = sc->enclosure_table;
2485 for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) {
2486 if (!et_entry->init_complete) {
2487 if (et_entry->missing_count <
2488 MPR_MAX_MISSING_COUNT) {
2489 mpr_dprint(sc, MPR_MAPPING, "%s: "
2490 "Enclosure %d is missing from the "
2491 "topology. Update its missing "
2492 "count.\n", __func__, i);
2493 et_entry->missing_count++;
2494 if (et_entry->dpm_entry_num !=
2496 _mapping_commit_enc_entry(sc,
2500 et_entry->init_complete = 1;
2503 if (!sc->ir_firmware)
2505 _mapping_get_ir_maprange(sc, &start_idx, &end_idx);
2506 mt_entry = &sc->mapping_table[start_idx];
2507 } else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
2508 MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
2510 end_idx = sc->max_devices - 1;
2511 mt_entry = sc->mapping_table;
2515 * The start and end indices have been set above according to the
2516 * mapping type. Go through these mappings and update any entries that
2517 * do not have the init_complete flag set, which means they are missing.
2521 for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) {
2522 if (mt_entry->device_info & MPR_DEV_RESERVED
2523 && !mt_entry->physical_id)
2524 mt_entry->init_complete = 1;
2525 else if (mt_entry->device_info & MPR_DEV_RESERVED) {
2526 if (!mt_entry->init_complete) {
2527 mpr_dprint(sc, MPR_MAPPING, "%s: Device in "
2528 "mapping table at index %d is missing from "
2529 "topology. Update its missing count.\n",
2531 if (mt_entry->missing_count <
2532 MPR_MAX_MISSING_COUNT) {
2533 mt_entry->missing_count++;
2534 if (mt_entry->dpm_entry_num !=
2536 _mapping_commit_map_entry(sc,
2540 mt_entry->init_complete = 1;
2547 * mpr_mapping_initialize - initialize mapping tables
2548 * @sc: per adapter object
2550 * Read controller persitant mapping tables into internal data area.
2552 * Return 0 for success or non-zero for failure.
2555 mpr_mapping_initialize(struct mpr_softc *sc)
2557 uint16_t volume_mapping_flags, dpm_pg0_sz;
2559 Mpi2ConfigReply_t mpi_reply;
2561 uint8_t retry_count;
2562 uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
2564 /* The additional 1 accounts for the virtual enclosure
2565 * created for the controller
2567 sc->max_enclosures = sc->facts->MaxEnclosures + 1;
2568 sc->max_expanders = sc->facts->MaxSasExpanders;
2569 sc->max_volumes = sc->facts->MaxVolumes;
2570 sc->max_devices = sc->facts->MaxTargets + sc->max_volumes;
2571 sc->pending_map_events = 0;
2572 sc->num_enc_table_entries = 0;
2573 sc->num_rsvd_entries = 0;
2574 sc->max_dpm_entries = sc->ioc_pg8.MaxPersistentEntries;
2575 sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0;
2576 sc->track_mapping_events = 0;
2578 mpr_dprint(sc, MPR_MAPPING, "%s: Mapping table has a max of %d entries "
2579 "and DPM has a max of %d entries.\n", __func__, sc->max_devices,
2580 sc->max_dpm_entries);
2582 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING)
2583 sc->is_dpm_enable = 0;
2585 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
2586 sc->num_rsvd_entries = 1;
2588 volume_mapping_flags = sc->ioc_pg8.IRVolumeMappingFlags &
2589 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
2590 if (sc->ir_firmware && (volume_mapping_flags ==
2591 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING))
2592 sc->num_rsvd_entries += sc->max_volumes;
2594 error = mpr_mapping_allocate_memory(sc);
2598 for (i = 0; i < sc->max_devices; i++)
2599 _mapping_clear_map_entry(sc->mapping_table + i);
2601 for (i = 0; i < sc->max_enclosures; i++)
2602 _mapping_clear_enc_entry(sc->enclosure_table + i);
2604 for (i = 0; i < sc->max_devices; i++) {
2605 sc->removal_table[i].dev_handle = 0;
2606 sc->removal_table[i].dpm_entry_num = MPR_DPM_BAD_IDX;
2609 memset(sc->dpm_entry_used, 0, sc->max_dpm_entries);
2610 memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries);
2612 if (sc->is_dpm_enable) {
2613 dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) +
2614 (sc->max_dpm_entries *
2615 sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY));
2619 if (mpr_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0,
2621 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: DPM page "
2622 "read failed.\n", __func__);
2623 if (retry_count < 3) {
2625 goto retry_read_dpm;
2627 sc->is_dpm_enable = 0;
2631 if (sc->is_dpm_enable) {
2632 if (!_mapping_process_dpm_pg0(sc))
2633 sc->is_dpm_enable = 0;
2635 if (! sc->is_dpm_enable) {
2636 mpr_dprint(sc, MPR_MAPPING, "%s: DPM processing is disabled. "
2637 "Device mappings will not persist across reboots or "
2638 "resets.\n", __func__);
2641 sc->track_mapping_events = 1;
2646 * mpr_mapping_exit - clear mapping table and associated memory
2647 * @sc: per adapter object
2652 mpr_mapping_exit(struct mpr_softc *sc)
2654 _mapping_flush_dpm_pages(sc);
2655 mpr_mapping_free_memory(sc);
2659 * mpr_mapping_get_tid - return the target id for sas device and handle
2660 * @sc: per adapter object
2661 * @sas_address: sas address of the device
2662 * @handle: device handle
2664 * Returns valid target ID on success or BAD_ID.
2667 mpr_mapping_get_tid(struct mpr_softc *sc, uint64_t sas_address, u16 handle)
2670 struct dev_mapping_table *mt_entry;
2672 for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
2673 mt_entry = &sc->mapping_table[map_idx];
2674 if (mt_entry->dev_handle == handle && mt_entry->physical_id ==
2676 return mt_entry->id;
2679 return MPR_MAP_BAD_ID;
2683 * mpr_mapping_get_tid_from_handle - find a target id in mapping table using
2684 * only the dev handle. This is just a wrapper function for the local function
2685 * _mapping_get_mt_idx_from_handle.
2686 * @sc: per adapter object
2687 * @handle: device handle
2689 * Returns valid target ID on success or BAD_ID.
2692 mpr_mapping_get_tid_from_handle(struct mpr_softc *sc, u16 handle)
2694 return (_mapping_get_mt_idx_from_handle(sc, handle));
2698 * mpr_mapping_get_raid_tid - return the target id for raid device
2699 * @sc: per adapter object
2700 * @wwid: world wide identifier for raid volume
2701 * @volHandle: volume device handle
2703 * Returns valid target ID on success or BAD_ID.
2706 mpr_mapping_get_raid_tid(struct mpr_softc *sc, u64 wwid, u16 volHandle)
2708 u32 start_idx, end_idx, map_idx;
2709 struct dev_mapping_table *mt_entry;
2711 _mapping_get_ir_maprange(sc, &start_idx, &end_idx);
2712 mt_entry = &sc->mapping_table[start_idx];
2713 for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) {
2714 if (mt_entry->dev_handle == volHandle &&
2715 mt_entry->physical_id == wwid)
2716 return mt_entry->id;
2719 return MPR_MAP_BAD_ID;
2723 * mpr_mapping_get_raid_tid_from_handle - find raid device in mapping table
2724 * using only the volume dev handle. This is just a wrapper function for the
2725 * local function _mapping_get_ir_mt_idx_from_handle.
2726 * @sc: per adapter object
2727 * @volHandle: volume device handle
2729 * Returns valid target ID on success or BAD_ID.
2732 mpr_mapping_get_raid_tid_from_handle(struct mpr_softc *sc, u16 volHandle)
2734 return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle));
2738 * mpr_mapping_enclosure_dev_status_change_event - handle enclosure events
2739 * @sc: per adapter object
2740 * @event_data: event data payload
2745 mpr_mapping_enclosure_dev_status_change_event(struct mpr_softc *sc,
2746 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
2748 u8 enc_idx, missing_count;
2749 struct enc_mapping_table *et_entry;
2750 Mpi2DriverMap0Entry_t *dpm_entry;
2751 u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
2752 u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
2753 u8 update_phy_bits = 0;
2755 uint64_t temp64_var;
2757 if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) !=
2758 MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING)
2761 dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
2762 sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
2764 if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) {
2765 if (!event_data->NumSlots) {
2766 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Enclosure "
2767 "with handle = 0x%x reported 0 slots.\n", __func__,
2768 le16toh(event_data->EnclosureHandle));
2771 temp64_var = event_data->EnclosureLogicalID.High;
2772 temp64_var = (temp64_var << 32) |
2773 event_data->EnclosureLogicalID.Low;
2774 enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var,
2775 event_data->PhyBits);
2778 * If the Added enclosure is already in the Enclosure Table,
2779 * make sure that all the the enclosure info is up to date. If
2780 * the enclosure was missing and has just been added back, or if
2781 * the enclosure's Phy Bits have changed, clear the missing
2782 * count and update the Phy Bits in the mapping table and in the
2783 * DPM, if it's being used.
2785 if (enc_idx != MPR_ENCTABLE_BAD_IDX) {
2786 et_entry = &sc->enclosure_table[enc_idx];
2787 if (et_entry->init_complete &&
2788 !et_entry->missing_count) {
2789 mpr_dprint(sc, MPR_MAPPING, "%s: Enclosure %d "
2790 "is already present with handle = 0x%x\n",
2791 __func__, enc_idx, et_entry->enc_handle);
2794 et_entry->enc_handle = le16toh(event_data->
2796 et_entry->start_slot = le16toh(event_data->StartSlot);
2797 saved_phy_bits = et_entry->phy_bits;
2798 et_entry->phy_bits |= le32toh(event_data->PhyBits);
2799 if (saved_phy_bits != et_entry->phy_bits)
2800 update_phy_bits = 1;
2801 if (et_entry->missing_count || update_phy_bits) {
2802 et_entry->missing_count = 0;
2803 if (sc->is_dpm_enable &&
2804 et_entry->dpm_entry_num !=
2806 dpm_entry += et_entry->dpm_entry_num;
2808 (u8)(dpm_entry->MappingInformation &
2809 MPI2_DRVMAP0_MAPINFO_MISSING_MASK);
2810 if (missing_count || update_phy_bits) {
2811 dpm_entry->MappingInformation
2812 = et_entry->num_slots;
2813 dpm_entry->MappingInformation
2815 dpm_entry->PhysicalBitsMapping
2816 = et_entry->phy_bits;
2817 sc->dpm_flush_entry[et_entry->
2824 * This is a new enclosure that is being added.
2825 * Initialize the Enclosure Table entry. It will be
2826 * finalized when a device is added for the enclosure
2827 * and the enclosure has enough space in the Mapping
2828 * Table to map its devices.
2830 enc_idx = sc->num_enc_table_entries;
2831 if (enc_idx >= sc->max_enclosures) {
2832 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: "
2833 "Enclosure cannot be added to mapping "
2834 "table because it's full.\n", __func__);
2837 sc->num_enc_table_entries++;
2838 et_entry = &sc->enclosure_table[enc_idx];
2839 et_entry->enc_handle = le16toh(event_data->
2841 et_entry->enclosure_id = le64toh(event_data->
2842 EnclosureLogicalID.High);
2843 et_entry->enclosure_id =
2844 ((et_entry->enclosure_id << 32) |
2845 le64toh(event_data->EnclosureLogicalID.Low));
2846 et_entry->start_index = MPR_MAPTABLE_BAD_IDX;
2847 et_entry->dpm_entry_num = MPR_DPM_BAD_IDX;
2848 et_entry->num_slots = le16toh(event_data->NumSlots);
2849 et_entry->start_slot = le16toh(event_data->StartSlot);
2850 et_entry->phy_bits = le32toh(event_data->PhyBits);
2852 et_entry->init_complete = 1;
2853 } else if (event_data->ReasonCode ==
2854 MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) {
2856 * An enclosure was removed. Update its missing count and then
2857 * update the DPM entry with the new missing count for the
2860 enc_idx = _mapping_get_enc_idx_from_handle(sc,
2861 le16toh(event_data->EnclosureHandle));
2862 if (enc_idx == MPR_ENCTABLE_BAD_IDX) {
2863 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING, "%s: Cannot "
2864 "unmap enclosure %d because it has already been "
2865 "deleted.\n", __func__, enc_idx);
2868 et_entry = &sc->enclosure_table[enc_idx];
2869 if (et_entry->missing_count < MPR_MAX_MISSING_COUNT)
2870 et_entry->missing_count++;
2871 if (sc->is_dpm_enable &&
2872 et_entry->dpm_entry_num != MPR_DPM_BAD_IDX) {
2873 dpm_entry += et_entry->dpm_entry_num;
2874 dpm_entry->MappingInformation = et_entry->num_slots;
2875 dpm_entry->MappingInformation <<= map_shift;
2876 dpm_entry->MappingInformation |=
2877 et_entry->missing_count;
2878 sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1;
2880 et_entry->init_complete = 1;
2884 _mapping_flush_dpm_pages(sc);
2885 if (sc->pending_map_events)
2886 sc->pending_map_events--;
2890 * mpr_mapping_topology_change_event - handle topology change events
2891 * @sc: per adapter object
2892 * @event_data: event data payload
2897 mpr_mapping_topology_change_event(struct mpr_softc *sc,
2898 Mpi2EventDataSasTopologyChangeList_t *event_data)
2900 struct _map_topology_change topo_change;
2901 struct _map_phy_change *phy_change;
2902 Mpi2EventSasTopoPhyEntry_t *event_phy_change;
2905 topo_change.enc_handle = le16toh(event_data->EnclosureHandle);
2906 topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle);
2907 num_entries = event_data->NumEntries;
2908 topo_change.num_entries = num_entries;
2909 topo_change.start_phy_num = event_data->StartPhyNum;
2910 topo_change.num_phys = event_data->NumPhys;
2911 topo_change.exp_status = event_data->ExpStatus;
2912 event_phy_change = event_data->PHY;
2913 topo_change.phy_details = NULL;
2917 phy_change = malloc(sizeof(struct _map_phy_change) * num_entries,
2918 M_MPR, M_NOWAIT|M_ZERO);
2919 topo_change.phy_details = phy_change;
2922 for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) {
2923 phy_change->dev_handle = le16toh(event_phy_change->
2925 phy_change->reason = event_phy_change->PhyStatus &
2926 MPI2_EVENT_SAS_TOPO_RC_MASK;
2928 _mapping_update_missing_count(sc, &topo_change);
2929 _mapping_get_dev_info(sc, &topo_change);
2930 _mapping_clear_removed_entries(sc);
2931 _mapping_add_new_device(sc, &topo_change);
2934 free(topo_change.phy_details, M_MPR);
2935 _mapping_flush_dpm_pages(sc);
2936 if (sc->pending_map_events)
2937 sc->pending_map_events--;
2941 * mpr_mapping_pcie_topology_change_event - handle PCIe topology change events
2942 * @sc: per adapter object
2943 * @event_data: event data payload
2948 mpr_mapping_pcie_topology_change_event(struct mpr_softc *sc,
2949 Mpi26EventDataPCIeTopologyChangeList_t *event_data)
2951 struct _map_pcie_topology_change topo_change;
2952 struct _map_port_change *port_change;
2953 Mpi26EventPCIeTopoPortEntry_t *event_port_change;
2956 topo_change.switch_dev_handle = le16toh(event_data->SwitchDevHandle);
2957 topo_change.enc_handle = le16toh(event_data->EnclosureHandle);
2958 num_entries = event_data->NumEntries;
2959 topo_change.num_entries = num_entries;
2960 topo_change.start_port_num = event_data->StartPortNum;
2961 topo_change.num_ports = event_data->NumPorts;
2962 topo_change.switch_status = event_data->SwitchStatus;
2963 event_port_change = event_data->PortEntry;
2964 topo_change.port_details = NULL;
2968 port_change = malloc(sizeof(struct _map_port_change) * num_entries,
2969 M_MPR, M_NOWAIT|M_ZERO);
2970 topo_change.port_details = port_change;
2973 for (i = 0; i < num_entries; i++, event_port_change++, port_change++) {
2974 port_change->dev_handle = le16toh(event_port_change->
2976 port_change->reason = event_port_change->PortStatus;
2978 _mapping_update_pcie_missing_count(sc, &topo_change);
2979 _mapping_get_pcie_dev_info(sc, &topo_change);
2980 _mapping_clear_removed_entries(sc);
2981 _mapping_add_new_pcie_device(sc, &topo_change);
2984 free(topo_change.port_details, M_MPR);
2985 _mapping_flush_dpm_pages(sc);
2986 if (sc->pending_map_events)
2987 sc->pending_map_events--;
2991 * mpr_mapping_ir_config_change_event - handle IR config change list events
2992 * @sc: per adapter object
2993 * @event_data: event data payload
2998 mpr_mapping_ir_config_change_event(struct mpr_softc *sc,
2999 Mpi2EventDataIrConfigChangeList_t *event_data)
3001 Mpi2EventIrConfigElement_t *element;
3005 struct dev_mapping_table *mt_entry;
3008 wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPR,
3012 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3013 flags = le32toh(event_data->Flags);
3016 * For volume changes, get the WWID for the volume and put it in a
3017 * table to be used in the processing of the IR change event.
3019 for (i = 0; i < event_data->NumElements; i++, element++) {
3020 element_flags = le16toh(element->ElementFlags);
3021 if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) &&
3022 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) &&
3023 (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE)
3024 && (element->ReasonCode !=
3025 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED))
3027 if ((element_flags &
3028 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) ==
3029 MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) {
3030 mpr_config_get_volume_wwid(sc,
3031 le16toh(element->VolDevHandle), &wwid_table[i]);
3036 * Check the ReasonCode for each element in the IR event and Add/Remove
3037 * Volumes or Physical Disks of Volumes to/from the mapping table. Use
3038 * the WWIDs gotten above in wwid_table.
3040 if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3043 element = (Mpi2EventIrConfigElement_t *)&event_data->
3045 for (i = 0; i < event_data->NumElements; i++, element++) {
3046 if (element->ReasonCode ==
3047 MPI2_EVENT_IR_CHANGE_RC_ADDED ||
3048 element->ReasonCode ==
3049 MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) {
3050 map_idx = _mapping_get_ir_mt_idx_from_wwid
3051 (sc, wwid_table[i]);
3052 if (map_idx != MPR_MAPTABLE_BAD_IDX) {
3054 * The volume is already in the mapping
3055 * table. Just update it's info.
3057 mt_entry = &sc->mapping_table[map_idx];
3058 mt_entry->id = map_idx;
3059 mt_entry->dev_handle = le16toh
3060 (element->VolDevHandle);
3061 mt_entry->device_info =
3062 MPR_DEV_RESERVED | MPR_MAP_IN_USE;
3063 _mapping_update_ir_missing_cnt(sc,
3064 map_idx, element, wwid_table[i]);
3069 * Volume is not in mapping table yet. Find a
3070 * free entry in the mapping table at the
3071 * volume mapping locations. If no entries are
3072 * available, this is an error because it means
3073 * there are more volumes than can be mapped
3074 * and that should never happen for volumes.
3076 map_idx = _mapping_get_free_ir_mt_idx(sc);
3077 if (map_idx == MPR_MAPTABLE_BAD_IDX)
3079 mpr_dprint(sc, MPR_ERROR | MPR_MAPPING,
3080 "%s: failed to add the volume with "
3081 "handle 0x%04x because there is no "
3082 "free space available in the "
3083 "mapping table\n", __func__,
3084 le16toh(element->VolDevHandle));
3087 mt_entry = &sc->mapping_table[map_idx];
3088 mt_entry->physical_id = wwid_table[i];
3089 mt_entry->id = map_idx;
3090 mt_entry->dev_handle = le16toh(element->
3092 mt_entry->device_info = MPR_DEV_RESERVED |
3094 _mapping_update_ir_missing_cnt(sc, map_idx,
3095 element, wwid_table[i]);
3096 } else if (element->ReasonCode ==
3097 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3098 map_idx = _mapping_get_ir_mt_idx_from_wwid(sc,
3100 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
3101 mpr_dprint(sc, MPR_MAPPING,"%s: Failed "
3102 "to remove a volume because it has "
3103 "already been removed.\n",
3107 _mapping_update_ir_missing_cnt(sc, map_idx,
3108 element, wwid_table[i]);
3109 } else if (element->ReasonCode ==
3110 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) {
3111 map_idx = _mapping_get_mt_idx_from_handle(sc,
3112 le16toh(element->VolDevHandle));
3113 if (map_idx == MPR_MAPTABLE_BAD_IDX) {
3114 mpr_dprint(sc, MPR_MAPPING,"%s: Failed "
3115 "to remove volume with handle "
3116 "0x%04x because it has already "
3117 "been removed.\n", __func__,
3118 le16toh(element->VolDevHandle));
3121 mt_entry = &sc->mapping_table[map_idx];
3122 _mapping_update_ir_missing_cnt(sc, map_idx,
3123 element, mt_entry->physical_id);
3129 _mapping_flush_dpm_pages(sc);
3130 free(wwid_table, M_MPR);
3131 if (sc->pending_map_events)
3132 sc->pending_map_events--;