Lines Matching +full:parent +full:- +full:child
1 // SPDX-License-Identifier: GPL-2.0
29 /* ---------- SMP task management ---------- */
40 to_sas_internal(dev->port->ha->shost->transportt); in smp_execute_task_sg()
41 struct sas_ha_struct *ha = dev->port->ha; in smp_execute_task_sg()
43 pm_runtime_get_sync(ha->dev); in smp_execute_task_sg()
44 mutex_lock(&dev->ex_dev.cmd_mutex); in smp_execute_task_sg()
46 if (test_bit(SAS_DEV_GONE, &dev->state)) { in smp_execute_task_sg()
47 res = -ECOMM; in smp_execute_task_sg()
53 res = -ENOMEM; in smp_execute_task_sg()
56 task->dev = dev; in smp_execute_task_sg()
57 task->task_proto = dev->tproto; in smp_execute_task_sg()
58 task->smp_task.smp_req = *req; in smp_execute_task_sg()
59 task->smp_task.smp_resp = *resp; in smp_execute_task_sg()
61 task->task_done = sas_task_internal_done; in smp_execute_task_sg()
63 task->slow_task->timer.function = sas_task_internal_timedout; in smp_execute_task_sg()
64 task->slow_task->timer.expires = jiffies + SMP_TIMEOUT*HZ; in smp_execute_task_sg()
65 add_timer(&task->slow_task->timer); in smp_execute_task_sg()
67 res = i->dft->lldd_execute_task(task, GFP_KERNEL); in smp_execute_task_sg()
70 del_timer_sync(&task->slow_task->timer); in smp_execute_task_sg()
75 wait_for_completion(&task->slow_task->completion); in smp_execute_task_sg()
76 res = -ECOMM; in smp_execute_task_sg()
77 if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { in smp_execute_task_sg()
79 i->dft->lldd_abort_task(task); in smp_execute_task_sg()
80 if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { in smp_execute_task_sg()
85 if (task->task_status.resp == SAS_TASK_COMPLETE && in smp_execute_task_sg()
86 task->task_status.stat == SAS_SAM_STAT_GOOD) { in smp_execute_task_sg()
90 if (task->task_status.resp == SAS_TASK_COMPLETE && in smp_execute_task_sg()
91 task->task_status.stat == SAS_DATA_UNDERRUN) { in smp_execute_task_sg()
94 res = task->task_status.residual; in smp_execute_task_sg()
97 if (task->task_status.resp == SAS_TASK_COMPLETE && in smp_execute_task_sg()
98 task->task_status.stat == SAS_DATA_OVERRUN) { in smp_execute_task_sg()
99 res = -EMSGSIZE; in smp_execute_task_sg()
102 if (task->task_status.resp == SAS_TASK_UNDELIVERED && in smp_execute_task_sg()
103 task->task_status.stat == SAS_DEVICE_UNKNOWN) in smp_execute_task_sg()
108 SAS_ADDR(dev->sas_addr), in smp_execute_task_sg()
109 task->task_status.resp, in smp_execute_task_sg()
110 task->task_status.stat); in smp_execute_task_sg()
115 mutex_unlock(&dev->ex_dev.cmd_mutex); in smp_execute_task_sg()
116 pm_runtime_put_sync(ha->dev); in smp_execute_task_sg()
134 /* ---------- Allocations ---------- */
151 switch (phy->routing_attr) { in sas_route_char()
153 if (dev->ex_dev.t2t_supp) in sas_route_char()
169 * FIS as described in section J.5 of sas-2 r16 in to_dev_type()
171 if (dr->attached_dev_type == SAS_PHY_UNUSED && dr->attached_sata_dev && in to_dev_type()
172 dr->linkrate >= SAS_LINK_RATE_1_5_GBPS) in to_dev_type()
175 return dr->attached_dev_type; in to_dev_type()
184 struct discover_resp *dr = &disc_resp->disc; in sas_set_ex_phy()
185 struct sas_ha_struct *ha = dev->port->ha; in sas_set_ex_phy()
186 struct expander_device *ex = &dev->ex_dev; in sas_set_ex_phy()
187 struct ex_phy *phy = &ex->ex_phy[phy_id]; in sas_set_ex_phy()
188 struct sas_rphy *rphy = dev->rphy; in sas_set_ex_phy()
189 bool new_phy = !phy->phy; in sas_set_ex_phy()
193 if (WARN_ON_ONCE(test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state))) in sas_set_ex_phy()
195 phy->phy = sas_phy_alloc(&rphy->dev, phy_id); in sas_set_ex_phy()
198 BUG_ON(!phy->phy); in sas_set_ex_phy()
201 switch (disc_resp->result) { in sas_set_ex_phy()
203 phy->phy_state = PHY_VACANT; in sas_set_ex_phy()
206 phy->phy_state = PHY_NOT_PRESENT; in sas_set_ex_phy()
209 phy->phy_state = PHY_EMPTY; /* do not know yet */ in sas_set_ex_phy()
214 dev_type = phy->attached_dev_type; in sas_set_ex_phy()
215 linkrate = phy->linkrate; in sas_set_ex_phy()
216 memcpy(sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE); in sas_set_ex_phy()
218 /* Handle vacant phy - rest of dr data is not valid so skip it */ in sas_set_ex_phy()
219 if (phy->phy_state == PHY_VACANT) { in sas_set_ex_phy()
220 memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE); in sas_set_ex_phy()
221 phy->attached_dev_type = SAS_PHY_UNUSED; in sas_set_ex_phy()
222 if (!test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state)) { in sas_set_ex_phy()
223 phy->phy_id = phy_id; in sas_set_ex_phy()
229 phy->attached_dev_type = to_dev_type(dr); in sas_set_ex_phy()
230 if (test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state)) in sas_set_ex_phy()
232 phy->phy_id = phy_id; in sas_set_ex_phy()
233 phy->linkrate = dr->linkrate; in sas_set_ex_phy()
234 phy->attached_sata_host = dr->attached_sata_host; in sas_set_ex_phy()
235 phy->attached_sata_dev = dr->attached_sata_dev; in sas_set_ex_phy()
236 phy->attached_sata_ps = dr->attached_sata_ps; in sas_set_ex_phy()
237 phy->attached_iproto = dr->iproto << 1; in sas_set_ex_phy()
238 phy->attached_tproto = dr->tproto << 1; in sas_set_ex_phy()
242 if (phy->attached_dev_type == SAS_PHY_UNUSED) in sas_set_ex_phy()
243 memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE); in sas_set_ex_phy()
245 memcpy(phy->attached_sas_addr, dr->attached_sas_addr, SAS_ADDR_SIZE); in sas_set_ex_phy()
246 phy->attached_phy_id = dr->attached_phy_id; in sas_set_ex_phy()
247 phy->phy_change_count = dr->change_count; in sas_set_ex_phy()
248 phy->routing_attr = dr->routing_attr; in sas_set_ex_phy()
249 phy->virtual = dr->virtual; in sas_set_ex_phy()
250 phy->last_da_index = -1; in sas_set_ex_phy()
252 phy->phy->identify.sas_address = SAS_ADDR(phy->attached_sas_addr); in sas_set_ex_phy()
253 phy->phy->identify.device_type = dr->attached_dev_type; in sas_set_ex_phy()
254 phy->phy->identify.initiator_port_protocols = phy->attached_iproto; in sas_set_ex_phy()
255 phy->phy->identify.target_port_protocols = phy->attached_tproto; in sas_set_ex_phy()
256 if (!phy->attached_tproto && dr->attached_sata_dev) in sas_set_ex_phy()
257 phy->phy->identify.target_port_protocols = SAS_PROTOCOL_SATA; in sas_set_ex_phy()
258 phy->phy->identify.phy_identifier = phy_id; in sas_set_ex_phy()
259 phy->phy->minimum_linkrate_hw = dr->hmin_linkrate; in sas_set_ex_phy()
260 phy->phy->maximum_linkrate_hw = dr->hmax_linkrate; in sas_set_ex_phy()
261 phy->phy->minimum_linkrate = dr->pmin_linkrate; in sas_set_ex_phy()
262 phy->phy->maximum_linkrate = dr->pmax_linkrate; in sas_set_ex_phy()
263 phy->phy->negotiated_linkrate = phy->linkrate; in sas_set_ex_phy()
264 phy->phy->enabled = (phy->linkrate != SAS_PHY_DISABLED); in sas_set_ex_phy()
268 if (sas_phy_add(phy->phy)) { in sas_set_ex_phy()
269 sas_phy_free(phy->phy); in sas_set_ex_phy()
274 switch (phy->attached_dev_type) { in sas_set_ex_phy()
282 if (phy->attached_iproto) { in sas_set_ex_phy()
283 if (phy->attached_tproto) in sas_set_ex_phy()
288 if (dr->attached_sata_dev) in sas_set_ex_phy()
305 if (new_phy || phy->attached_dev_type != dev_type || in sas_set_ex_phy()
306 phy->linkrate != linkrate || in sas_set_ex_phy()
307 SAS_ADDR(phy->attached_sas_addr) != SAS_ADDR(sas_addr)) in sas_set_ex_phy()
316 if (test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state)) in sas_set_ex_phy()
317 set_bit(DISCE_REVALIDATE_DOMAIN, &dev->port->disc.pending); in sas_set_ex_phy()
320 test_bit(SAS_HA_ATA_EH_ACTIVE, &ha->state) ? "ata: " : "", in sas_set_ex_phy()
321 SAS_ADDR(dev->sas_addr), phy->phy_id, in sas_set_ex_phy()
322 sas_route_char(dev, phy), phy->linkrate, in sas_set_ex_phy()
323 SAS_ADDR(phy->attached_sas_addr), type); in sas_set_ex_phy()
329 struct ex_phy *ex_phy = &ex_dev->ex_dev.ex_phy[phy_id]; in sas_ex_to_ata()
333 if (!ex_phy->port) in sas_ex_to_ata()
336 rphy = ex_phy->port->rphy; in sas_ex_to_ata()
355 struct discover_resp *dr = &disc_resp->disc; in sas_ex_phy_discover_helper()
364 if (memcmp(dev->sas_addr, dr->attached_sas_addr, SAS_ADDR_SIZE) == 0) { in sas_ex_phy_discover_helper()
374 struct expander_device *ex = &dev->ex_dev; in sas_ex_phy_discover()
381 return -ENOMEM; in sas_ex_phy_discover()
386 return -ENOMEM; in sas_ex_phy_discover()
391 if (0 <= single && single < ex->num_phys) { in sas_ex_phy_discover()
396 for (i = 0; i < ex->num_phys; i++) { in sas_ex_phy_discover()
411 struct expander_device *ex = &dev->ex_dev; in sas_expander_discover()
414 ex->ex_phy = kcalloc(ex->num_phys, sizeof(*ex->ex_phy), GFP_KERNEL); in sas_expander_discover()
415 if (!ex->ex_phy) in sas_expander_discover()
416 return -ENOMEM; in sas_expander_discover()
418 res = sas_ex_phy_discover(dev, -1); in sas_expander_discover()
424 kfree(ex->ex_phy); in sas_expander_discover()
425 ex->ex_phy = NULL; in sas_expander_discover()
444 return -ENOMEM; in sas_ex_general()
449 return -ENOMEM; in sas_ex_general()
460 SAS_ADDR(dev->sas_addr), res); in sas_ex_general()
462 } else if (rg_resp->result != SMP_RESP_FUNC_ACC) { in sas_ex_general()
464 SAS_ADDR(dev->sas_addr), rg_resp->result); in sas_ex_general()
465 res = rg_resp->result; in sas_ex_general()
469 rg = &rg_resp->rg; in sas_ex_general()
470 dev->ex_dev.ex_change_count = be16_to_cpu(rg->change_count); in sas_ex_general()
471 dev->ex_dev.max_route_indexes = be16_to_cpu(rg->route_indexes); in sas_ex_general()
472 dev->ex_dev.num_phys = min(rg->num_phys, (u8)MAX_EXPANDER_PHYS); in sas_ex_general()
473 dev->ex_dev.t2t_supp = rg->t2t_supp; in sas_ex_general()
474 dev->ex_dev.conf_route_table = rg->conf_route_table; in sas_ex_general()
475 dev->ex_dev.configuring = rg->configuring; in sas_ex_general()
476 memcpy(dev->ex_dev.enclosure_logical_id, in sas_ex_general()
477 rg->enclosure_logical_id, 8); in sas_ex_general()
479 if (dev->ex_dev.configuring) { in sas_ex_general()
480 pr_debug("RG: ex %016llx self-configuring...\n", in sas_ex_general()
481 SAS_ADDR(dev->sas_addr)); in sas_ex_general()
496 struct sas_rphy *rphy = dev->rphy; in ex_assign_manuf_info()
499 memcpy(edev->vendor_id, mi_resp + 12, SAS_EXPANDER_VENDOR_ID_LEN); in ex_assign_manuf_info()
500 memcpy(edev->product_id, mi_resp + 20, SAS_EXPANDER_PRODUCT_ID_LEN); in ex_assign_manuf_info()
501 memcpy(edev->product_rev, mi_resp + 36, in ex_assign_manuf_info()
505 memcpy(edev->component_vendor_id, mi_resp + 40, in ex_assign_manuf_info()
507 edev->component_id = mi_resp[48] << 8 | mi_resp[49]; in ex_assign_manuf_info()
508 edev->component_revision_id = mi_resp[50]; in ex_assign_manuf_info()
523 return -ENOMEM; in sas_ex_manuf_info()
528 return -ENOMEM; in sas_ex_manuf_info()
536 SAS_ADDR(dev->sas_addr), res); in sas_ex_manuf_info()
540 SAS_ADDR(dev->sas_addr), mi_resp[2]); in sas_ex_manuf_info()
564 return -ENOMEM; in sas_smp_phy_control()
569 return -ENOMEM; in sas_smp_phy_control()
576 pc_req[32] = rates->minimum_linkrate << 4; in sas_smp_phy_control()
577 pc_req[33] = rates->maximum_linkrate << 4; in sas_smp_phy_control()
583 SAS_ADDR(dev->sas_addr), phy_id, res); in sas_smp_phy_control()
586 SAS_ADDR(dev->sas_addr), phy_id, pc_resp[2]); in sas_smp_phy_control()
596 struct expander_device *ex = &dev->ex_dev; in sas_ex_disable_phy()
597 struct ex_phy *phy = &ex->ex_phy[phy_id]; in sas_ex_disable_phy()
600 phy->linkrate = SAS_PHY_DISABLED; in sas_ex_disable_phy()
605 struct expander_device *ex = &dev->ex_dev; in sas_ex_disable_port()
608 for (i = 0; i < ex->num_phys; i++) { in sas_ex_disable_port()
609 struct ex_phy *phy = &ex->ex_phy[i]; in sas_ex_disable_port()
611 if (phy->phy_state == PHY_VACANT || in sas_ex_disable_port()
612 phy->phy_state == PHY_NOT_PRESENT) in sas_ex_disable_port()
615 if (SAS_ADDR(phy->attached_sas_addr) == SAS_ADDR(sas_addr)) in sas_ex_disable_port()
625 if (SAS_ADDR(port->sas_addr) == SAS_ADDR(sas_addr)) in sas_dev_present_in_domain()
627 list_for_each_entry(dev, &port->dev_list, dev_list_node) { in sas_dev_present_in_domain()
628 if (SAS_ADDR(dev->sas_addr) == SAS_ADDR(sas_addr)) in sas_dev_present_in_domain()
641 struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent); in sas_smp_get_phy_events()
646 return -ENOMEM; in sas_smp_get_phy_events()
651 return -ENOMEM; in sas_smp_get_phy_events()
655 req[9] = phy->number; in sas_smp_get_phy_events()
663 phy->invalid_dword_count = get_unaligned_be32(&resp[12]); in sas_smp_get_phy_events()
664 phy->running_disparity_error_count = get_unaligned_be32(&resp[16]); in sas_smp_get_phy_events()
665 phy->loss_of_dword_sync_count = get_unaligned_be32(&resp[20]); in sas_smp_get_phy_events()
666 phy->phy_reset_problem_count = get_unaligned_be32(&resp[24]); in sas_smp_get_phy_events()
688 return -ENOMEM; in sas_get_report_phy_sata()
697 * standards cockup here. sas-2 explicitly specifies the FIS in sas_get_report_phy_sata()
721 static void sas_ex_get_linkrate(struct domain_device *parent, in sas_ex_get_linkrate() argument
722 struct domain_device *child, in sas_ex_get_linkrate() argument
725 struct expander_device *parent_ex = &parent->ex_dev; in sas_ex_get_linkrate()
729 child->pathways = 0; in sas_ex_get_linkrate()
731 port = parent_phy->port; in sas_ex_get_linkrate()
733 for (i = 0; i < parent_ex->num_phys; i++) { in sas_ex_get_linkrate()
734 struct ex_phy *phy = &parent_ex->ex_phy[i]; in sas_ex_get_linkrate()
736 if (phy->phy_state == PHY_VACANT || in sas_ex_get_linkrate()
737 phy->phy_state == PHY_NOT_PRESENT) in sas_ex_get_linkrate()
740 if (sas_phy_match_dev_addr(child, phy)) { in sas_ex_get_linkrate()
741 child->min_linkrate = min(parent->min_linkrate, in sas_ex_get_linkrate()
742 phy->linkrate); in sas_ex_get_linkrate()
743 child->max_linkrate = max(parent->max_linkrate, in sas_ex_get_linkrate()
744 phy->linkrate); in sas_ex_get_linkrate()
745 child->pathways++; in sas_ex_get_linkrate()
746 sas_port_add_phy(port, phy->phy); in sas_ex_get_linkrate()
749 child->linkrate = min(parent_phy->linkrate, child->max_linkrate); in sas_ex_get_linkrate()
750 child->pathways = min(child->pathways, parent->pathways); in sas_ex_get_linkrate()
753 static int sas_ex_add_dev(struct domain_device *parent, struct ex_phy *phy, in sas_ex_add_dev() argument
754 struct domain_device *child, int phy_id) in sas_ex_add_dev() argument
759 child->dev_type = SAS_END_DEVICE; in sas_ex_add_dev()
760 rphy = sas_end_device_alloc(phy->port); in sas_ex_add_dev()
762 return -ENOMEM; in sas_ex_add_dev()
764 child->tproto = phy->attached_tproto; in sas_ex_add_dev()
765 sas_init_dev(child); in sas_ex_add_dev()
767 child->rphy = rphy; in sas_ex_add_dev()
768 get_device(&rphy->dev); in sas_ex_add_dev()
769 rphy->identify.phy_identifier = phy_id; in sas_ex_add_dev()
770 sas_fill_in_rphy(child, rphy); in sas_ex_add_dev()
772 list_add_tail(&child->disco_list_node, &parent->port->disco_list); in sas_ex_add_dev()
774 res = sas_notify_lldd_dev_found(child); in sas_ex_add_dev()
777 SAS_ADDR(child->sas_addr), in sas_ex_add_dev()
778 SAS_ADDR(parent->sas_addr), phy_id, res); in sas_ex_add_dev()
779 sas_rphy_free(child->rphy); in sas_ex_add_dev()
780 list_del(&child->disco_list_node); in sas_ex_add_dev()
788 struct domain_device *parent, int phy_id) in sas_ex_discover_end_dev() argument
790 struct expander_device *parent_ex = &parent->ex_dev; in sas_ex_discover_end_dev()
791 struct ex_phy *phy = &parent_ex->ex_phy[phy_id]; in sas_ex_discover_end_dev()
792 struct domain_device *child = NULL; in sas_ex_discover_end_dev() local
795 if (phy->attached_sata_host || phy->attached_sata_ps) in sas_ex_discover_end_dev()
798 child = sas_alloc_device(); in sas_ex_discover_end_dev()
799 if (!child) in sas_ex_discover_end_dev()
802 kref_get(&parent->kref); in sas_ex_discover_end_dev()
803 child->parent = parent; in sas_ex_discover_end_dev()
804 child->port = parent->port; in sas_ex_discover_end_dev()
805 child->iproto = phy->attached_iproto; in sas_ex_discover_end_dev()
806 memcpy(child->sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE); in sas_ex_discover_end_dev()
807 sas_hash_addr(child->hashed_sas_addr, child->sas_addr); in sas_ex_discover_end_dev()
808 if (!phy->port) { in sas_ex_discover_end_dev()
809 phy->port = sas_port_alloc(&parent->rphy->dev, phy_id); in sas_ex_discover_end_dev()
810 if (unlikely(!phy->port)) in sas_ex_discover_end_dev()
812 if (unlikely(sas_port_add(phy->port) != 0)) { in sas_ex_discover_end_dev()
813 sas_port_free(phy->port); in sas_ex_discover_end_dev()
817 sas_ex_get_linkrate(parent, child, phy); in sas_ex_discover_end_dev()
818 sas_device_set_phy(child, phy->port); in sas_ex_discover_end_dev()
820 if ((phy->attached_tproto & SAS_PROTOCOL_STP) || phy->attached_sata_dev) { in sas_ex_discover_end_dev()
821 res = sas_ata_add_dev(parent, phy, child, phy_id); in sas_ex_discover_end_dev()
822 } else if (phy->attached_tproto & SAS_PROTOCOL_SSP) { in sas_ex_discover_end_dev()
823 res = sas_ex_add_dev(parent, phy, child, phy_id); in sas_ex_discover_end_dev()
826 phy->attached_tproto, SAS_ADDR(parent->sas_addr), in sas_ex_discover_end_dev()
828 res = -ENODEV; in sas_ex_discover_end_dev()
834 list_add_tail(&child->siblings, &parent_ex->children); in sas_ex_discover_end_dev()
835 return child; in sas_ex_discover_end_dev()
838 sas_port_delete(phy->port); in sas_ex_discover_end_dev()
840 phy->port = NULL; in sas_ex_discover_end_dev()
841 sas_put_device(child); in sas_ex_discover_end_dev()
846 static bool sas_ex_join_wide_port(struct domain_device *parent, int phy_id) in sas_ex_join_wide_port() argument
848 struct ex_phy *phy = &parent->ex_dev.ex_phy[phy_id]; in sas_ex_join_wide_port()
851 for (i = 0; i < parent->ex_dev.num_phys; i++) { in sas_ex_join_wide_port()
852 struct ex_phy *ephy = &parent->ex_dev.ex_phy[i]; in sas_ex_join_wide_port()
857 if (!memcmp(phy->attached_sas_addr, ephy->attached_sas_addr, in sas_ex_join_wide_port()
858 SAS_ADDR_SIZE) && ephy->port) { in sas_ex_join_wide_port()
859 sas_port_add_phy(ephy->port, phy->phy); in sas_ex_join_wide_port()
860 phy->port = ephy->port; in sas_ex_join_wide_port()
861 phy->phy_state = PHY_DEVICE_DISCOVERED; in sas_ex_join_wide_port()
870 struct domain_device *parent, int phy_id) in sas_ex_discover_expander() argument
872 struct sas_expander_device *parent_ex = rphy_to_expander_device(parent->rphy); in sas_ex_discover_expander()
873 struct ex_phy *phy = &parent->ex_dev.ex_phy[phy_id]; in sas_ex_discover_expander()
874 struct domain_device *child = NULL; in sas_ex_discover_expander() local
880 if (phy->routing_attr == DIRECT_ROUTING) { in sas_ex_discover_expander()
881 pr_warn("ex %016llx:%02d:D <--> ex %016llx:0x%x is not allowed\n", in sas_ex_discover_expander()
882 SAS_ADDR(parent->sas_addr), phy_id, in sas_ex_discover_expander()
883 SAS_ADDR(phy->attached_sas_addr), in sas_ex_discover_expander()
884 phy->attached_phy_id); in sas_ex_discover_expander()
887 child = sas_alloc_device(); in sas_ex_discover_expander()
888 if (!child) in sas_ex_discover_expander()
891 phy->port = sas_port_alloc(&parent->rphy->dev, phy_id); in sas_ex_discover_expander()
893 BUG_ON(sas_port_add(phy->port) != 0); in sas_ex_discover_expander()
896 switch (phy->attached_dev_type) { in sas_ex_discover_expander()
898 rphy = sas_expander_alloc(phy->port, in sas_ex_discover_expander()
902 rphy = sas_expander_alloc(phy->port, in sas_ex_discover_expander()
909 port = parent->port; in sas_ex_discover_expander()
910 child->rphy = rphy; in sas_ex_discover_expander()
911 get_device(&rphy->dev); in sas_ex_discover_expander()
913 child->dev_type = phy->attached_dev_type; in sas_ex_discover_expander()
914 kref_get(&parent->kref); in sas_ex_discover_expander()
915 child->parent = parent; in sas_ex_discover_expander()
916 child->port = port; in sas_ex_discover_expander()
917 child->iproto = phy->attached_iproto; in sas_ex_discover_expander()
918 child->tproto = phy->attached_tproto; in sas_ex_discover_expander()
919 memcpy(child->sas_addr, phy->attached_sas_addr, SAS_ADDR_SIZE); in sas_ex_discover_expander()
920 sas_hash_addr(child->hashed_sas_addr, child->sas_addr); in sas_ex_discover_expander()
921 sas_ex_get_linkrate(parent, child, phy); in sas_ex_discover_expander()
922 edev->level = parent_ex->level + 1; in sas_ex_discover_expander()
923 parent->port->disc.max_level = max(parent->port->disc.max_level, in sas_ex_discover_expander()
924 edev->level); in sas_ex_discover_expander()
925 sas_init_dev(child); in sas_ex_discover_expander()
926 sas_fill_in_rphy(child, rphy); in sas_ex_discover_expander()
929 spin_lock_irq(&parent->port->dev_list_lock); in sas_ex_discover_expander()
930 list_add_tail(&child->dev_list_node, &parent->port->dev_list); in sas_ex_discover_expander()
931 spin_unlock_irq(&parent->port->dev_list_lock); in sas_ex_discover_expander()
933 res = sas_discover_expander(child); in sas_ex_discover_expander()
936 spin_lock_irq(&parent->port->dev_list_lock); in sas_ex_discover_expander()
937 list_del(&child->dev_list_node); in sas_ex_discover_expander()
938 spin_unlock_irq(&parent->port->dev_list_lock); in sas_ex_discover_expander()
939 sas_put_device(child); in sas_ex_discover_expander()
940 sas_port_delete(phy->port); in sas_ex_discover_expander()
941 phy->port = NULL; in sas_ex_discover_expander()
944 list_add_tail(&child->siblings, &parent->ex_dev.children); in sas_ex_discover_expander()
945 return child; in sas_ex_discover_expander()
950 struct expander_device *ex = &dev->ex_dev; in sas_ex_discover_dev()
951 struct ex_phy *ex_phy = &ex->ex_phy[phy_id]; in sas_ex_discover_dev()
952 struct domain_device *child = NULL; in sas_ex_discover_dev() local
956 if (ex_phy->linkrate == SAS_SATA_SPINUP_HOLD) { in sas_ex_discover_dev()
963 /* Parent and domain coherency */ in sas_ex_discover_dev()
964 if (!dev->parent && sas_phy_match_port_addr(dev->port, ex_phy)) { in sas_ex_discover_dev()
968 if (dev->parent && sas_phy_match_dev_addr(dev->parent, ex_phy)) { in sas_ex_discover_dev()
970 if (ex_phy->routing_attr == TABLE_ROUTING) in sas_ex_discover_dev()
971 sas_configure_phy(dev, phy_id, dev->port->sas_addr, 1); in sas_ex_discover_dev()
975 if (sas_dev_present_in_domain(dev->port, ex_phy->attached_sas_addr)) in sas_ex_discover_dev()
976 sas_ex_disable_port(dev, ex_phy->attached_sas_addr); in sas_ex_discover_dev()
978 if (ex_phy->attached_dev_type == SAS_PHY_UNUSED) { in sas_ex_discover_dev()
979 if (ex_phy->routing_attr == DIRECT_ROUTING) { in sas_ex_discover_dev()
980 memset(ex_phy->attached_sas_addr, 0, SAS_ADDR_SIZE); in sas_ex_discover_dev()
981 sas_configure_routing(dev, ex_phy->attached_sas_addr); in sas_ex_discover_dev()
984 } else if (ex_phy->linkrate == SAS_LINK_RATE_UNKNOWN) in sas_ex_discover_dev()
987 if (ex_phy->attached_dev_type != SAS_END_DEVICE && in sas_ex_discover_dev()
988 ex_phy->attached_dev_type != SAS_FANOUT_EXPANDER_DEVICE && in sas_ex_discover_dev()
989 ex_phy->attached_dev_type != SAS_EDGE_EXPANDER_DEVICE && in sas_ex_discover_dev()
990 ex_phy->attached_dev_type != SAS_SATA_PENDING) { in sas_ex_discover_dev()
992 ex_phy->attached_dev_type, in sas_ex_discover_dev()
993 SAS_ADDR(dev->sas_addr), in sas_ex_discover_dev()
998 res = sas_configure_routing(dev, ex_phy->attached_sas_addr); in sas_ex_discover_dev()
1001 SAS_ADDR(ex_phy->attached_sas_addr), res); in sas_ex_discover_dev()
1002 sas_disable_routing(dev, ex_phy->attached_sas_addr); in sas_ex_discover_dev()
1008 phy_id, SAS_ADDR(ex_phy->attached_sas_addr)); in sas_ex_discover_dev()
1012 switch (ex_phy->attached_dev_type) { in sas_ex_discover_dev()
1015 child = sas_ex_discover_end_dev(dev, phy_id); in sas_ex_discover_dev()
1018 if (SAS_ADDR(dev->port->disc.fanout_sas_addr)) { in sas_ex_discover_dev()
1020 SAS_ADDR(ex_phy->attached_sas_addr), in sas_ex_discover_dev()
1021 ex_phy->attached_phy_id, in sas_ex_discover_dev()
1022 SAS_ADDR(dev->sas_addr), in sas_ex_discover_dev()
1027 memcpy(dev->port->disc.fanout_sas_addr, in sas_ex_discover_dev()
1028 ex_phy->attached_sas_addr, SAS_ADDR_SIZE); in sas_ex_discover_dev()
1031 child = sas_ex_discover_expander(dev, phy_id); in sas_ex_discover_dev()
1037 if (!child) in sas_ex_discover_dev()
1039 SAS_ADDR(dev->sas_addr), phy_id); in sas_ex_discover_dev()
1045 struct expander_device *ex = &dev->ex_dev; in sas_find_sub_addr()
1048 for (i = 0; i < ex->num_phys; i++) { in sas_find_sub_addr()
1049 struct ex_phy *phy = &ex->ex_phy[i]; in sas_find_sub_addr()
1051 if (phy->phy_state == PHY_VACANT || in sas_find_sub_addr()
1052 phy->phy_state == PHY_NOT_PRESENT) in sas_find_sub_addr()
1055 if (dev_is_expander(phy->attached_dev_type) && in sas_find_sub_addr()
1056 phy->routing_attr == SUBTRACTIVE_ROUTING) { in sas_find_sub_addr()
1058 memcpy(sub_addr, phy->attached_sas_addr, SAS_ADDR_SIZE); in sas_find_sub_addr()
1068 struct expander_device *ex = &dev->ex_dev; in sas_check_level_subtractive_boundary()
1069 struct domain_device *child; in sas_check_level_subtractive_boundary() local
1072 list_for_each_entry(child, &ex->children, siblings) { in sas_check_level_subtractive_boundary()
1073 if (!dev_is_expander(child->dev_type)) in sas_check_level_subtractive_boundary()
1076 sas_find_sub_addr(child, sub_addr); in sas_check_level_subtractive_boundary()
1081 if (sas_find_sub_addr(child, s2) && in sas_check_level_subtractive_boundary()
1084 pr_notice("ex %016llx->%016llx-?->%016llx diverges from subtractive boundary %016llx\n", in sas_check_level_subtractive_boundary()
1085 SAS_ADDR(dev->sas_addr), in sas_check_level_subtractive_boundary()
1086 SAS_ADDR(child->sas_addr), in sas_check_level_subtractive_boundary()
1090 sas_ex_disable_port(child, s2); in sas_check_level_subtractive_boundary()
1097 * sas_ex_discover_devices - discover devices attached to this expander
1099 * @single: if you want to do a single phy, else set to -1;
1106 struct expander_device *ex = &dev->ex_dev; in sas_ex_discover_devices()
1107 int i = 0, end = ex->num_phys; in sas_ex_discover_devices()
1116 struct ex_phy *ex_phy = &ex->ex_phy[i]; in sas_ex_discover_devices()
1118 if (ex_phy->phy_state == PHY_VACANT || in sas_ex_discover_devices()
1119 ex_phy->phy_state == PHY_NOT_PRESENT || in sas_ex_discover_devices()
1120 ex_phy->phy_state == PHY_DEVICE_DISCOVERED) in sas_ex_discover_devices()
1123 switch (ex_phy->linkrate) { in sas_ex_discover_devices()
1144 struct expander_device *ex = &dev->ex_dev; in sas_check_ex_subtractive_boundary()
1148 if (dev->dev_type != SAS_EDGE_EXPANDER_DEVICE) in sas_check_ex_subtractive_boundary()
1151 for (i = 0; i < ex->num_phys; i++) { in sas_check_ex_subtractive_boundary()
1152 struct ex_phy *phy = &ex->ex_phy[i]; in sas_check_ex_subtractive_boundary()
1154 if (phy->phy_state == PHY_VACANT || in sas_check_ex_subtractive_boundary()
1155 phy->phy_state == PHY_NOT_PRESENT) in sas_check_ex_subtractive_boundary()
1158 if (dev_is_expander(phy->attached_dev_type) && in sas_check_ex_subtractive_boundary()
1159 phy->routing_attr == SUBTRACTIVE_ROUTING) { in sas_check_ex_subtractive_boundary()
1162 sub_sas_addr = &phy->attached_sas_addr[0]; in sas_check_ex_subtractive_boundary()
1164 SAS_ADDR(phy->attached_sas_addr)) { in sas_check_ex_subtractive_boundary()
1167 SAS_ADDR(dev->sas_addr), i, in sas_check_ex_subtractive_boundary()
1168 SAS_ADDR(phy->attached_sas_addr), in sas_check_ex_subtractive_boundary()
1177 static void sas_print_parent_topology_bug(struct domain_device *child, in sas_print_parent_topology_bug() argument
1185 struct domain_device *parent = child->parent; in sas_print_parent_topology_bug() local
1187 pr_notice("%s ex %016llx phy%02d <--> %s ex %016llx phy%02d has %c:%c routing link!\n", in sas_print_parent_topology_bug()
1188 ex_type[parent->dev_type], in sas_print_parent_topology_bug()
1189 SAS_ADDR(parent->sas_addr), in sas_print_parent_topology_bug()
1190 parent_phy->phy_id, in sas_print_parent_topology_bug()
1192 ex_type[child->dev_type], in sas_print_parent_topology_bug()
1193 SAS_ADDR(child->sas_addr), in sas_print_parent_topology_bug()
1194 child_phy->phy_id, in sas_print_parent_topology_bug()
1196 sas_route_char(parent, parent_phy), in sas_print_parent_topology_bug()
1197 sas_route_char(child, child_phy)); in sas_print_parent_topology_bug()
1200 static bool sas_eeds_valid(struct domain_device *parent, in sas_eeds_valid() argument
1201 struct domain_device *child) in sas_eeds_valid() argument
1203 struct sas_discovery *disc = &parent->port->disc; in sas_eeds_valid()
1205 return (SAS_ADDR(disc->eeds_a) == SAS_ADDR(parent->sas_addr) || in sas_eeds_valid()
1206 SAS_ADDR(disc->eeds_a) == SAS_ADDR(child->sas_addr)) && in sas_eeds_valid()
1207 (SAS_ADDR(disc->eeds_b) == SAS_ADDR(parent->sas_addr) || in sas_eeds_valid()
1208 SAS_ADDR(disc->eeds_b) == SAS_ADDR(child->sas_addr)); in sas_eeds_valid()
1211 static int sas_check_eeds(struct domain_device *child, in sas_check_eeds() argument
1216 struct domain_device *parent = child->parent; in sas_check_eeds() local
1217 struct sas_discovery *disc = &parent->port->disc; in sas_check_eeds()
1219 if (SAS_ADDR(disc->fanout_sas_addr) != 0) { in sas_check_eeds()
1220 res = -ENODEV; in sas_check_eeds()
1221 …pr_warn("edge ex %016llx phy S:%02d <--> edge ex %016llx phy S:%02d, while there is a fanout ex %0… in sas_check_eeds()
1222 SAS_ADDR(parent->sas_addr), in sas_check_eeds()
1223 parent_phy->phy_id, in sas_check_eeds()
1224 SAS_ADDR(child->sas_addr), in sas_check_eeds()
1225 child_phy->phy_id, in sas_check_eeds()
1226 SAS_ADDR(disc->fanout_sas_addr)); in sas_check_eeds()
1227 } else if (SAS_ADDR(disc->eeds_a) == 0) { in sas_check_eeds()
1228 memcpy(disc->eeds_a, parent->sas_addr, SAS_ADDR_SIZE); in sas_check_eeds()
1229 memcpy(disc->eeds_b, child->sas_addr, SAS_ADDR_SIZE); in sas_check_eeds()
1230 } else if (!sas_eeds_valid(parent, child)) { in sas_check_eeds()
1231 res = -ENODEV; in sas_check_eeds()
1232 pr_warn("edge ex %016llx phy%02d <--> edge ex %016llx phy%02d link forms a third EEDS!\n", in sas_check_eeds()
1233 SAS_ADDR(parent->sas_addr), in sas_check_eeds()
1234 parent_phy->phy_id, in sas_check_eeds()
1235 SAS_ADDR(child->sas_addr), in sas_check_eeds()
1236 child_phy->phy_id); in sas_check_eeds()
1242 static int sas_check_edge_expander_topo(struct domain_device *child, in sas_check_edge_expander_topo() argument
1245 struct expander_device *child_ex = &child->ex_dev; in sas_check_edge_expander_topo()
1246 struct expander_device *parent_ex = &child->parent->ex_dev; in sas_check_edge_expander_topo()
1249 child_phy = &child_ex->ex_phy[parent_phy->attached_phy_id]; in sas_check_edge_expander_topo()
1251 if (child->dev_type == SAS_FANOUT_EXPANDER_DEVICE) { in sas_check_edge_expander_topo()
1252 if (parent_phy->routing_attr != SUBTRACTIVE_ROUTING || in sas_check_edge_expander_topo()
1253 child_phy->routing_attr != TABLE_ROUTING) in sas_check_edge_expander_topo()
1255 } else if (parent_phy->routing_attr == SUBTRACTIVE_ROUTING) { in sas_check_edge_expander_topo()
1256 if (child_phy->routing_attr == SUBTRACTIVE_ROUTING) in sas_check_edge_expander_topo()
1257 return sas_check_eeds(child, parent_phy, child_phy); in sas_check_edge_expander_topo()
1258 else if (child_phy->routing_attr != TABLE_ROUTING) in sas_check_edge_expander_topo()
1260 } else if (parent_phy->routing_attr == TABLE_ROUTING) { in sas_check_edge_expander_topo()
1261 if (child_phy->routing_attr != SUBTRACTIVE_ROUTING && in sas_check_edge_expander_topo()
1262 (child_phy->routing_attr != TABLE_ROUTING || in sas_check_edge_expander_topo()
1263 !child_ex->t2t_supp || !parent_ex->t2t_supp)) in sas_check_edge_expander_topo()
1269 sas_print_parent_topology_bug(child, parent_phy, child_phy); in sas_check_edge_expander_topo()
1270 return -ENODEV; in sas_check_edge_expander_topo()
1273 static int sas_check_fanout_expander_topo(struct domain_device *child, in sas_check_fanout_expander_topo() argument
1276 struct expander_device *child_ex = &child->ex_dev; in sas_check_fanout_expander_topo()
1279 child_phy = &child_ex->ex_phy[parent_phy->attached_phy_id]; in sas_check_fanout_expander_topo()
1281 if (parent_phy->routing_attr == TABLE_ROUTING && in sas_check_fanout_expander_topo()
1282 child_phy->routing_attr == SUBTRACTIVE_ROUTING) in sas_check_fanout_expander_topo()
1285 sas_print_parent_topology_bug(child, parent_phy, child_phy); in sas_check_fanout_expander_topo()
1287 return -ENODEV; in sas_check_fanout_expander_topo()
1290 static int sas_check_parent_topology(struct domain_device *child) in sas_check_parent_topology() argument
1296 if (!child->parent) in sas_check_parent_topology()
1299 if (!dev_is_expander(child->parent->dev_type)) in sas_check_parent_topology()
1302 parent_ex = &child->parent->ex_dev; in sas_check_parent_topology()
1304 for (i = 0; i < parent_ex->num_phys; i++) { in sas_check_parent_topology()
1305 struct ex_phy *parent_phy = &parent_ex->ex_phy[i]; in sas_check_parent_topology()
1307 if (parent_phy->phy_state == PHY_VACANT || in sas_check_parent_topology()
1308 parent_phy->phy_state == PHY_NOT_PRESENT) in sas_check_parent_topology()
1311 if (!sas_phy_match_dev_addr(child, parent_phy)) in sas_check_parent_topology()
1314 switch (child->parent->dev_type) { in sas_check_parent_topology()
1316 if (sas_check_edge_expander_topo(child, parent_phy)) in sas_check_parent_topology()
1317 res = -ENODEV; in sas_check_parent_topology()
1320 if (sas_check_fanout_expander_topo(child, parent_phy)) in sas_check_parent_topology()
1321 res = -ENODEV; in sas_check_parent_topology()
1338 struct expander_device *ex = &dev->ex_dev; in sas_configure_present()
1339 struct ex_phy *phy = &ex->ex_phy[phy_id]; in sas_configure_present()
1348 return -ENOMEM; in sas_configure_present()
1353 return -ENOMEM; in sas_configure_present()
1359 for (i = 0; i < ex->max_route_indexes ; i++) { in sas_configure_present()
1368 SAS_ADDR(dev->sas_addr), phy_id, i); in sas_configure_present()
1372 __func__, SAS_ADDR(dev->sas_addr), phy_id, in sas_configure_present()
1390 phy->last_da_index < i) { in sas_configure_present()
1391 phy->last_da_index = i; in sas_configure_present()
1397 res = -1; in sas_configure_present()
1416 return -ENOMEM; in sas_configure_set()
1421 return -ENOMEM; in sas_configure_set()
1438 SAS_ADDR(dev->sas_addr), phy_id, index); in sas_configure_set()
1464 * sas_configure_parent - configure routing table of parent
1465 * @parent: parent expander
1466 * @child: child expander
1467 * @sas_addr: SAS port identifier of device directly attached to child
1468 * @include: whether or not to include @child in the expander routing table
1470 static int sas_configure_parent(struct domain_device *parent, in sas_configure_parent() argument
1471 struct domain_device *child, in sas_configure_parent() argument
1474 struct expander_device *ex_parent = &parent->ex_dev; in sas_configure_parent()
1478 if (parent->parent) { in sas_configure_parent()
1479 res = sas_configure_parent(parent->parent, parent, sas_addr, in sas_configure_parent()
1485 if (ex_parent->conf_route_table == 0) { in sas_configure_parent()
1486 pr_debug("ex %016llx has self-configuring routing table\n", in sas_configure_parent()
1487 SAS_ADDR(parent->sas_addr)); in sas_configure_parent()
1491 for (i = 0; i < ex_parent->num_phys; i++) { in sas_configure_parent()
1492 struct ex_phy *phy = &ex_parent->ex_phy[i]; in sas_configure_parent()
1494 if ((phy->routing_attr == TABLE_ROUTING) && in sas_configure_parent()
1495 sas_phy_match_dev_addr(child, phy)) { in sas_configure_parent()
1496 res = sas_configure_phy(parent, i, sas_addr, include); in sas_configure_parent()
1506 * sas_configure_routing - configure routing
1512 if (dev->parent) in sas_configure_routing()
1513 return sas_configure_parent(dev->parent, dev, sas_addr, 1); in sas_configure_routing()
1519 if (dev->parent) in sas_disable_routing()
1520 return sas_configure_parent(dev->parent, dev, sas_addr, 0); in sas_disable_routing()
1525 * sas_discover_expander - expander discovery
1548 SAS_ADDR(dev->sas_addr), res); in sas_discover_expander()
1567 list_for_each_entry(dev, &port->dev_list, dev_list_node) { in sas_ex_level_discovery()
1568 if (dev_is_expander(dev->dev_type)) { in sas_ex_level_discovery()
1570 rphy_to_expander_device(dev->rphy); in sas_ex_level_discovery()
1572 if (level == ex->level) in sas_ex_level_discovery()
1573 res = sas_ex_discover_devices(dev, -1); in sas_ex_level_discovery()
1575 res = sas_ex_discover_devices(port->port_dev, -1); in sas_ex_level_discovery()
1589 level = port->disc.max_level; in sas_ex_bfs_disc()
1592 } while (level < port->disc.max_level); in sas_ex_bfs_disc()
1600 struct sas_expander_device *ex = rphy_to_expander_device(dev->rphy); in sas_discover_root_expander()
1602 res = sas_rphy_add(dev->rphy); in sas_discover_root_expander()
1606 ex->level = dev->port->disc.max_level; /* 0 */ in sas_discover_root_expander()
1611 sas_ex_bfs_disc(dev->port); in sas_discover_root_expander()
1616 sas_rphy_remove(dev->rphy); in sas_discover_root_expander()
1621 /* ---------- Domain revalidation ---------- */
1627 memcpy(sas_addr, disc_resp->disc.attached_sas_addr, SAS_ADDR_SIZE); in sas_get_sas_addr_and_dev_type()
1628 *type = to_dev_type(&disc_resp->disc); in sas_get_sas_addr_and_dev_type()
1641 return -ENOMEM; in sas_get_phy_discover()
1650 if (disc_resp->result != SMP_RESP_FUNC_ACC) in sas_get_phy_discover()
1651 res = disc_resp->result; in sas_get_phy_discover()
1665 return -ENOMEM; in sas_get_phy_change_count()
1669 *pcc = disc_resp->disc.change_count; in sas_get_phy_change_count()
1683 return -ENOMEM; in sas_get_phy_attached_dev()
1695 struct expander_device *ex = &dev->ex_dev; in sas_find_bcast_phy()
1699 for (i = from_phy; i < ex->num_phys; i++) { in sas_find_bcast_phy()
1713 if (phy_change_count != ex->ex_phy[i].phy_change_count) { in sas_find_bcast_phy()
1715 ex->ex_phy[i].phy_change_count = in sas_find_bcast_phy()
1732 return -ENOMEM; in sas_get_ex_change_count()
1737 return -ENOMEM; in sas_get_ex_change_count()
1746 if (rg_resp->result != SMP_RESP_FUNC_ACC) { in sas_get_ex_change_count()
1747 res = rg_resp->result; in sas_get_ex_change_count()
1751 *ecc = be16_to_cpu(rg_resp->rg.change_count); in sas_get_ex_change_count()
1758 * sas_find_bcast_dev - find the device issue BROADCAST(CHANGE).
1762 * Add self-configuration expander support. Suppose two expander cascading,
1763 * when the first level expander is self-configuring, hotplug the disks in
1766 * expander (see SAS protocol SAS 2r-14, 7.11 for detail), it is to say,
1775 struct expander_device *ex = &dev->ex_dev; in sas_find_bcast_dev()
1776 int ex_change_count = -1; in sas_find_bcast_dev()
1777 int phy_id = -1; in sas_find_bcast_dev()
1784 if (ex_change_count != -1 && ex_change_count != ex->ex_change_count) { in sas_find_bcast_dev()
1790 if (phy_id != -1) { in sas_find_bcast_dev()
1792 ex->ex_change_count = ex_change_count; in sas_find_bcast_dev()
1794 SAS_ADDR(dev->sas_addr), phy_id); in sas_find_bcast_dev()
1798 SAS_ADDR(dev->sas_addr)); in sas_find_bcast_dev()
1800 list_for_each_entry(ch, &ex->children, siblings) { in sas_find_bcast_dev()
1801 if (dev_is_expander(ch->dev_type)) { in sas_find_bcast_dev()
1813 struct expander_device *ex = &dev->ex_dev; in sas_unregister_ex_tree()
1814 struct domain_device *child, *n; in sas_unregister_ex_tree() local
1816 list_for_each_entry_safe(child, n, &ex->children, siblings) { in sas_unregister_ex_tree()
1817 set_bit(SAS_DEV_GONE, &child->state); in sas_unregister_ex_tree()
1818 if (dev_is_expander(child->dev_type)) in sas_unregister_ex_tree()
1819 sas_unregister_ex_tree(port, child); in sas_unregister_ex_tree()
1821 sas_unregister_dev(port, child); in sas_unregister_ex_tree()
1826 static void sas_unregister_devs_sas_addr(struct domain_device *parent, in sas_unregister_devs_sas_addr() argument
1829 struct expander_device *ex_dev = &parent->ex_dev; in sas_unregister_devs_sas_addr()
1830 struct ex_phy *phy = &ex_dev->ex_phy[phy_id]; in sas_unregister_devs_sas_addr()
1831 struct domain_device *child, *n, *found = NULL; in sas_unregister_devs_sas_addr() local
1833 list_for_each_entry_safe(child, n, in sas_unregister_devs_sas_addr()
1834 &ex_dev->children, siblings) { in sas_unregister_devs_sas_addr()
1835 if (sas_phy_match_dev_addr(child, phy)) { in sas_unregister_devs_sas_addr()
1836 set_bit(SAS_DEV_GONE, &child->state); in sas_unregister_devs_sas_addr()
1837 if (dev_is_expander(child->dev_type)) in sas_unregister_devs_sas_addr()
1838 sas_unregister_ex_tree(parent->port, child); in sas_unregister_devs_sas_addr()
1840 sas_unregister_dev(parent->port, child); in sas_unregister_devs_sas_addr()
1841 found = child; in sas_unregister_devs_sas_addr()
1845 sas_disable_routing(parent, phy->attached_sas_addr); in sas_unregister_devs_sas_addr()
1847 memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE); in sas_unregister_devs_sas_addr()
1848 if (phy->port) { in sas_unregister_devs_sas_addr()
1849 sas_port_delete_phy(phy->port, phy->phy); in sas_unregister_devs_sas_addr()
1850 sas_device_set_phy(found, phy->port); in sas_unregister_devs_sas_addr()
1851 if (phy->port->num_phys == 0) in sas_unregister_devs_sas_addr()
1852 list_add_tail(&phy->port->del_list, in sas_unregister_devs_sas_addr()
1853 &parent->port->sas_port_del_list); in sas_unregister_devs_sas_addr()
1854 phy->port = NULL; in sas_unregister_devs_sas_addr()
1861 struct expander_device *ex_root = &root->ex_dev; in sas_discover_bfs_by_root_level()
1862 struct domain_device *child; in sas_discover_bfs_by_root_level() local
1865 list_for_each_entry(child, &ex_root->children, siblings) { in sas_discover_bfs_by_root_level()
1866 if (dev_is_expander(child->dev_type)) { in sas_discover_bfs_by_root_level()
1868 rphy_to_expander_device(child->rphy); in sas_discover_bfs_by_root_level()
1870 if (level > ex->level) in sas_discover_bfs_by_root_level()
1871 res = sas_discover_bfs_by_root_level(child, in sas_discover_bfs_by_root_level()
1873 else if (level == ex->level) in sas_discover_bfs_by_root_level()
1874 res = sas_ex_discover_devices(child, -1); in sas_discover_bfs_by_root_level()
1883 struct sas_expander_device *ex = rphy_to_expander_device(dev->rphy); in sas_discover_bfs_by_root()
1884 int level = ex->level+1; in sas_discover_bfs_by_root()
1886 res = sas_ex_discover_devices(dev, -1); in sas_discover_bfs_by_root()
1893 } while (level <= dev->port->disc.max_level); in sas_discover_bfs_by_root()
1900 struct ex_phy *ex_phy = &dev->ex_dev.ex_phy[phy_id]; in sas_discover_new()
1901 struct domain_device *child; in sas_discover_new() local
1905 SAS_ADDR(dev->sas_addr), phy_id); in sas_discover_new()
1916 list_for_each_entry(child, &dev->ex_dev.children, siblings) { in sas_discover_new()
1917 if (sas_phy_match_dev_addr(child, ex_phy)) { in sas_discover_new()
1918 if (dev_is_expander(child->dev_type)) in sas_discover_new()
1919 res = sas_discover_bfs_by_root(child); in sas_discover_new()
1944 struct expander_device *ex = &dev->ex_dev; in sas_rediscover_dev()
1945 struct ex_phy *phy = &ex->ex_phy[phy_id]; in sas_rediscover_dev()
1956 SAS_ADDR(dev->sas_addr), phy_id, msg); in sas_rediscover_dev()
1961 return -ENOMEM; in sas_rediscover_dev()
1966 phy->phy_state = PHY_NOT_PRESENT; in sas_rediscover_dev()
1970 phy->phy_state = PHY_VACANT; in sas_rediscover_dev()
1975 case -ECOMM: in sas_rediscover_dev()
1984 if ((SAS_ADDR(sas_addr) == 0) || (res == -ECOMM)) { in sas_rediscover_dev()
1985 phy->phy_state = PHY_EMPTY; in sas_rediscover_dev()
1994 } else if (SAS_ADDR(sas_addr) == SAS_ADDR(phy->attached_sas_addr) && in sas_rediscover_dev()
1995 dev_type_flutter(type, phy->attached_dev_type)) { in sas_rediscover_dev()
2001 if (ata_dev && phy->attached_dev_type == SAS_SATA_PENDING) in sas_rediscover_dev()
2004 SAS_ADDR(dev->sas_addr), phy_id, action); in sas_rediscover_dev()
2010 SAS_ADDR(dev->sas_addr), phy_id, in sas_rediscover_dev()
2011 SAS_ADDR(phy->attached_sas_addr)); in sas_rediscover_dev()
2021 * sas_rediscover - revalidate the domain.
2028 * domain.For plugging out, we un-register the device only when it is
2032 * forming the wide-port.
2036 struct expander_device *ex = &dev->ex_dev; in sas_rediscover()
2037 struct ex_phy *changed_phy = &ex->ex_phy[phy_id]; in sas_rediscover()
2043 SAS_ADDR(dev->sas_addr), phy_id); in sas_rediscover()
2045 if (SAS_ADDR(changed_phy->attached_sas_addr) != 0) { in sas_rediscover()
2046 for (i = 0; i < ex->num_phys; i++) { in sas_rediscover()
2047 struct ex_phy *phy = &ex->ex_phy[i]; in sas_rediscover()
2063 * sas_ex_revalidate_domain - revalidate the domain
2078 struct expander_device *ex = &dev->ex_dev; in sas_ex_revalidate_domain()
2082 phy_id = -1; in sas_ex_revalidate_domain()
2084 if (phy_id == -1) in sas_ex_revalidate_domain()
2088 } while (i < ex->num_phys); in sas_ex_revalidate_domain()
2099 for (phy_id = 0; phy_id < ex_dev->num_phys; phy_id++) { in sas_find_attached_phy_id()
2100 phy = &ex_dev->ex_phy[phy_id]; in sas_find_attached_phy_id()
2105 return -ENODEV; in sas_find_attached_phy_id()
2114 int ret = -EINVAL; in sas_smp_handler()
2120 switch (rphy->identify.device_type) { in sas_smp_handler()
2137 if (job->request_payload.sg_cnt > 1 || in sas_smp_handler()
2138 job->reply_payload.sg_cnt > 1) { in sas_smp_handler()
2140 __func__, job->request_payload.payload_len, in sas_smp_handler()
2141 job->reply_payload.payload_len); in sas_smp_handler()
2145 ret = smp_execute_task_sg(dev, job->request_payload.sg_list, in sas_smp_handler()
2146 job->reply_payload.sg_list); in sas_smp_handler()
2149 rcvlen = job->reply_payload.payload_len - ret; in sas_smp_handler()