diff options
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr.h | 11 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_fw.c | 10 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_os.c | 50 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_transport.c | 351 |
4 files changed, 421 insertions, 1 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index d20316787b8f..0f47b451beb3 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -482,6 +482,9 @@ struct mpi3mr_hba_port { * struct mpi3mr_sas_port - Internal SAS port information * @port_list: List of ports belonging to a SAS node * @num_phys: Number of phys associated with port + * @marked_responding: used while refresing the sas ports + * @lowest_phy: lowest phy ID of current sas port + * @phy_mask: phy_mask of current sas port * @hba_port: HBA port entry * @remote_identify: Attached device identification * @rphy: SAS transport layer rphy object @@ -491,6 +494,9 @@ struct mpi3mr_hba_port { struct mpi3mr_sas_port { struct list_head port_list; u8 num_phys; + u8 marked_responding; + int lowest_phy; + u32 phy_mask; struct mpi3mr_hba_port *hba_port; struct sas_identify remote_identify; struct sas_rphy *rphy; @@ -939,6 +945,7 @@ struct scmd_priv { * @scan_started: Async scan started * @scan_failed: Asycn scan failed * @stop_drv_processing: Stop all command processing + * @device_refresh_on: Don't process the events until devices are refreshed * @max_host_ios: Maximum host I/O count * @chain_buf_count: Chain buffer count * @chain_buf_pool: Chain buffer pool @@ -1107,6 +1114,7 @@ struct mpi3mr_ioc { u8 scan_started; u16 scan_failed; u8 stop_drv_processing; + u8 device_refresh_on; u16 max_host_ios; spinlock_t tgtdev_lock; @@ -1378,4 +1386,7 @@ struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy( struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy); void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, bool device_add); +void mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc); +void mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc); +void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc); #endif /*MPI3MR_H_INCLUDED*/ diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 866ad2269b13..cc700e291c83 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -3974,6 +3974,11 @@ retry_init: goto out_failed; } + if (!is_resume) { + mrioc->device_refresh_on = 1; + mpi3mr_add_event_wait_for_device_refresh(mrioc); + } + ioc_info(mrioc, "sending port enable\n"); retval = mpi3mr_issue_port_enable(mrioc, 0); if (retval) { @@ -4730,6 +4735,7 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc, ioc_info(mrioc, "controller reset is triggered by %s\n", mpi3mr_reset_rc_name(reset_reason)); + mrioc->device_refresh_on = 0; mrioc->reset_in_progress = 1; mrioc->stop_bsgs = 1; mrioc->prev_reset_result = -1; @@ -4811,7 +4817,8 @@ out: mpi3mr_pel_wait_post(mrioc, &mrioc->pel_cmds); } - mpi3mr_rfresh_tgtdevs(mrioc); + mrioc->device_refresh_on = 0; + mrioc->ts_update_counter = 0; spin_lock_irqsave(&mrioc->watchdog_lock, flags); if (mrioc->watchdog_work_q) @@ -4825,6 +4832,7 @@ out: } else { mpi3mr_issue_reset(mrioc, MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT, reset_reason); + mrioc->device_refresh_on = 0; mrioc->unrecoverable = 1; mrioc->reset_in_progress = 0; retval = -1; diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 6fc34b4ed302..d787d0f5a031 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -40,6 +40,8 @@ static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event, #define MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION (0xFFFF) +#define MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH (0xFFFE) + /** * mpi3mr_host_tag_for_scmd - Get host tag for a scmd * @mrioc: Adapter instance reference @@ -1106,6 +1108,9 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc, MPI3_DEVICE0_FLAGS_ATT_METHOD_VIRTUAL)) || (tgtdev->parent_handle == 0xFFFF)) tgtdev->non_stl = 1; + if (tgtdev->dev_spec.sas_sata_inf.hba_port) + tgtdev->dev_spec.sas_sata_inf.hba_port->port_id = + dev_pg0->io_unit_port; break; } case MPI3_DEVICE_DEVFORM_PCIE: @@ -1879,6 +1884,22 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, } break; } + case MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH: + { + while (mrioc->device_refresh_on) + msleep(500); + + dprint_event_bh(mrioc, + "scan for non responding and newly added devices after soft reset started\n"); + if (mrioc->sas_transport_enabled) { + mpi3mr_refresh_sas_ports(mrioc); + mpi3mr_refresh_expanders(mrioc); + } + mpi3mr_rfresh_tgtdevs(mrioc); + ioc_info(mrioc, + "scan for non responding and newly added devices after soft reset completed\n"); + break; + } default: break; } @@ -2649,6 +2670,35 @@ static void mpi3mr_cablemgmt_evt_th(struct mpi3mr_ioc *mrioc, } /** + * mpi3mr_add_event_wait_for_device_refresh - Add Wait for Device Refresh Event + * @mrioc: Adapter instance reference + * + * Add driver specific event to make sure that the driver won't process the + * events until all the devices are refreshed during soft reset. + * + * Return: Nothing + */ +void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc) +{ + struct mpi3mr_fwevt *fwevt = NULL; + + fwevt = mpi3mr_alloc_fwevt(0); + if (!fwevt) { + dprint_event_th(mrioc, + "failed to schedule bottom half handler for event(0x%02x)\n", + MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH); + return; + } + fwevt->mrioc = mrioc; + fwevt->event_id = MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH; + fwevt->send_ack = 0; + fwevt->process_evt = 1; + fwevt->evt_ctx = 0; + fwevt->event_data_size = 0; + mpi3mr_fwevt_add_to_list(mrioc, fwevt); +} + +/** * mpi3mr_os_handle_events - Firmware event handler * @mrioc: Adapter instance reference * @event_reply: event data diff --git a/drivers/scsi/mpi3mr/mpi3mr_transport.c b/drivers/scsi/mpi3mr/mpi3mr_transport.c index 2d3d0f4ccafb..2367d9fe3fb9 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_transport.c +++ b/drivers/scsi/mpi3mr/mpi3mr_transport.c @@ -9,6 +9,9 @@ #include "mpi3mr.h" +static void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc, + struct mpi3mr_sas_node *sas_expander); + /** * mpi3mr_post_transport_req - Issue transport requests and wait * @mrioc: Adapter instance reference @@ -596,6 +599,9 @@ static void mpi3mr_delete_sas_phy(struct mpi3mr_ioc *mrioc, list_del(&mr_sas_phy->port_siblings); mr_sas_port->num_phys--; + mr_sas_port->phy_mask &= ~(1 << mr_sas_phy->phy_id); + if (mr_sas_port->lowest_phy == mr_sas_phy->phy_id) + mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1; sas_port_delete_phy(mr_sas_port->port, mr_sas_phy->phy); mr_sas_phy->phy_belongs_to_port = 0; } @@ -620,6 +626,9 @@ static void mpi3mr_add_sas_phy(struct mpi3mr_ioc *mrioc, list_add_tail(&mr_sas_phy->port_siblings, &mr_sas_port->phy_list); mr_sas_port->num_phys++; + mr_sas_port->phy_mask |= (1 << mr_sas_phy->phy_id); + if (mr_sas_phy->phy_id < mr_sas_port->lowest_phy) + mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1; sas_port_add_phy(mr_sas_port->port, mr_sas_phy->phy); mr_sas_phy->phy_belongs_to_port = 1; } @@ -1351,6 +1360,7 @@ static struct mpi3mr_sas_port *mpi3mr_sas_port_add(struct mpi3mr_ioc *mrioc, list_add_tail(&mr_sas_node->phy[i].port_siblings, &mr_sas_port->phy_list); mr_sas_port->num_phys++; + mr_sas_port->phy_mask |= (1 << i); } if (!mr_sas_port->num_phys) { @@ -1359,6 +1369,8 @@ static struct mpi3mr_sas_port *mpi3mr_sas_port_add(struct mpi3mr_ioc *mrioc, goto out_fail; } + mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1; + if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) { tgtdev = mpi3mr_get_tgtdev_by_addr(mrioc, mr_sas_port->remote_identify.sas_address, @@ -1561,6 +1573,345 @@ static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address, } /** + * struct host_port - host port details + * @sas_address: SAS Address of the attached device + * @phy_mask: phy mask of host port + * @handle: Device Handle of attached device + * @iounit_port_id: port ID + * @used: host port is already matched with sas port from sas_port_list + * @lowest_phy: lowest phy ID of host port + */ +struct host_port { + u64 sas_address; + u32 phy_mask; + u16 handle; + u8 iounit_port_id; + u8 used; + u8 lowest_phy; +}; + +/** + * mpi3mr_update_mr_sas_port - update sas port objects during reset + * @mrioc: Adapter instance reference + * @h_port: host_port object + * @mr_sas_port: sas_port objects which needs to be updated + * + * Update the port ID of sas port object. Also add the phys if new phys got + * added to current sas port and remove the phys if some phys are moved + * out of the current sas port. + * + * Return: Nothing. + */ +static void +mpi3mr_update_mr_sas_port(struct mpi3mr_ioc *mrioc, struct host_port *h_port, + struct mpi3mr_sas_port *mr_sas_port) +{ + struct mpi3mr_sas_phy *mr_sas_phy; + u32 phy_mask_xor; + u64 phys_to_be_added, phys_to_be_removed; + int i; + + h_port->used = 1; + mr_sas_port->marked_responding = 1; + + dev_info(&mr_sas_port->port->dev, + "sas_address(0x%016llx), old: port_id %d phy_mask 0x%x, new: port_id %d phy_mask:0x%x\n", + mr_sas_port->remote_identify.sas_address, + mr_sas_port->hba_port->port_id, mr_sas_port->phy_mask, + h_port->iounit_port_id, h_port->phy_mask); + + mr_sas_port->hba_port->port_id = h_port->iounit_port_id; + mr_sas_port->hba_port->flags &= ~MPI3MR_HBA_PORT_FLAG_DIRTY; + + /* Get the newly added phys bit map & removed phys bit map */ + phy_mask_xor = mr_sas_port->phy_mask ^ h_port->phy_mask; + phys_to_be_added = h_port->phy_mask & phy_mask_xor; + phys_to_be_removed = mr_sas_port->phy_mask & phy_mask_xor; + + /* + * Register these new phys to current mr_sas_port's port. + * if these phys are previously registered with another port + * then delete these phys from that port first. + */ + for_each_set_bit(i, (ulong *) &phys_to_be_added, BITS_PER_TYPE(u32)) { + mr_sas_phy = &mrioc->sas_hba.phy[i]; + if (mr_sas_phy->phy_belongs_to_port) + mpi3mr_del_phy_from_an_existing_port(mrioc, + &mrioc->sas_hba, mr_sas_phy); + mpi3mr_add_phy_to_an_existing_port(mrioc, + &mrioc->sas_hba, mr_sas_phy, + mr_sas_port->remote_identify.sas_address, + mr_sas_port->hba_port); + } + + /* Delete the phys which are not part of current mr_sas_port's port. */ + for_each_set_bit(i, (ulong *) &phys_to_be_removed, BITS_PER_TYPE(u32)) { + mr_sas_phy = &mrioc->sas_hba.phy[i]; + if (mr_sas_phy->phy_belongs_to_port) + mpi3mr_del_phy_from_an_existing_port(mrioc, + &mrioc->sas_hba, mr_sas_phy); + } +} + +/** + * mpi3mr_refresh_sas_ports - update host's sas ports during reset + * @mrioc: Adapter instance reference + * + * Update the host's sas ports during reset by checking whether + * sas ports are still intact or not. Add/remove phys if any hba + * phys are (moved in)/(moved out) of sas port. Also update + * io_unit_port if it got changed during reset. + * + * Return: Nothing. + */ +void +mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc) +{ + struct host_port h_port[32]; + int i, j, found, host_port_count = 0, port_idx; + u16 sz, attached_handle, ioc_status; + struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL; + struct mpi3_device_page0 dev_pg0; + struct mpi3_device0_sas_sata_format *sasinf; + struct mpi3mr_sas_port *mr_sas_port; + + sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) + + (mrioc->sas_hba.num_phys * + sizeof(struct mpi3_sas_io_unit0_phy_data)); + sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL); + if (!sas_io_unit_pg0) + return; + if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) { + ioc_err(mrioc, "failure at %s:%d/%s()!\n", + __FILE__, __LINE__, __func__); + goto out; + } + + /* Create a new expander port table */ + for (i = 0; i < mrioc->sas_hba.num_phys; i++) { + attached_handle = le16_to_cpu( + sas_io_unit_pg0->phy_data[i].attached_dev_handle); + if (!attached_handle) + continue; + found = 0; + for (j = 0; j < host_port_count; j++) { + if (h_port[j].handle == attached_handle) { + h_port[j].phy_mask |= (1 << i); + found = 1; + break; + } + } + if (found) + continue; + if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0, + sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, + attached_handle))) { + dprint_reset(mrioc, + "failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n", + attached_handle, __FILE__, __LINE__, __func__); + continue; + } + if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { + dprint_reset(mrioc, + "ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n", + ioc_status, attached_handle, + __FILE__, __LINE__, __func__); + continue; + } + sasinf = &dev_pg0.device_specific.sas_sata_format; + + port_idx = host_port_count; + h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address); + h_port[port_idx].handle = attached_handle; + h_port[port_idx].phy_mask = (1 << i); + h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port; + h_port[port_idx].lowest_phy = sasinf->phy_num; + h_port[port_idx].used = 0; + host_port_count++; + } + + if (!host_port_count) + goto out; + + if (mrioc->logging_level & MPI3_DEBUG_RESET) { + ioc_info(mrioc, "Host port details before reset\n"); + list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, + port_list) { + ioc_info(mrioc, + "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n", + mr_sas_port->hba_port->port_id, + mr_sas_port->remote_identify.sas_address, + mr_sas_port->phy_mask, mr_sas_port->lowest_phy); + } + mr_sas_port = NULL; + ioc_info(mrioc, "Host port details after reset\n"); + for (i = 0; i < host_port_count; i++) { + ioc_info(mrioc, + "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n", + h_port[i].iounit_port_id, h_port[i].sas_address, + h_port[i].phy_mask, h_port[i].lowest_phy); + } + } + + /* mark all host sas port entries as dirty */ + list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, + port_list) { + mr_sas_port->marked_responding = 0; + mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY; + } + + /* First check for matching lowest phy */ + for (i = 0; i < host_port_count; i++) { + mr_sas_port = NULL; + list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, + port_list) { + if (mr_sas_port->marked_responding) + continue; + if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address) + continue; + if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) { + mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port); + break; + } + } + } + + /* In case if lowest phy is got enabled or disabled during reset */ + for (i = 0; i < host_port_count; i++) { + if (h_port[i].used) + continue; + mr_sas_port = NULL; + list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, + port_list) { + if (mr_sas_port->marked_responding) + continue; + if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address) + continue; + if (h_port[i].phy_mask & mr_sas_port->phy_mask) { + mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port); + break; + } + } + } + + /* In case if expander cable is removed & connected to another HBA port during reset */ + for (i = 0; i < host_port_count; i++) { + if (h_port[i].used) + continue; + mr_sas_port = NULL; + list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, + port_list) { + if (mr_sas_port->marked_responding) + continue; + if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address) + continue; + mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port); + break; + } + } +out: + kfree(sas_io_unit_pg0); +} + +/** + * mpi3mr_refresh_expanders - Refresh expander device exposure + * @mrioc: Adapter instance reference + * + * This is executed post controller reset to identify any + * missing expander devices during reset and remove from the upper layers + * or expose any newly detected expander device to the upper layers. + * + * Return: Nothing. + */ +void +mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc) +{ + struct mpi3mr_sas_node *sas_expander, *sas_expander_next; + struct mpi3_sas_expander_page0 expander_pg0; + u16 ioc_status, handle; + u64 sas_address; + int i; + unsigned long flags; + struct mpi3mr_hba_port *hba_port; + + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) { + sas_expander->non_responding = 1; + } + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + + sas_expander = NULL; + + handle = 0xffff; + + /* Search for responding expander devices and add them if they are newly got added */ + while (true) { + if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0, + sizeof(struct mpi3_sas_expander_page0), + MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, handle))) { + dprint_reset(mrioc, + "failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n", + handle, __FILE__, __LINE__, __func__); + break; + } + + if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { + dprint_reset(mrioc, + "ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n", + ioc_status, handle, __FILE__, __LINE__, __func__); + break; + } + + handle = le16_to_cpu(expander_pg0.dev_handle); + sas_address = le64_to_cpu(expander_pg0.sas_address); + hba_port = mpi3mr_get_hba_port_by_id(mrioc, expander_pg0.io_unit_port); + + if (!hba_port) { + mpi3mr_sas_host_refresh(mrioc); + mpi3mr_expander_add(mrioc, handle); + continue; + } + + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + sas_expander = + mpi3mr_expander_find_by_sas_address(mrioc, + sas_address, hba_port); + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + + if (!sas_expander) { + mpi3mr_sas_host_refresh(mrioc); + mpi3mr_expander_add(mrioc, handle); + continue; + } + + sas_expander->non_responding = 0; + if (sas_expander->handle == handle) + continue; + + sas_expander->handle = handle; + for (i = 0 ; i < sas_expander->num_phys ; i++) + sas_expander->phy[i].handle = handle; + } + + /* + * Delete non responding expander devices and the corresponding + * hba_port if the non responding expander device's parent device + * is a host node. + */ + sas_expander = NULL; + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + list_for_each_entry_safe_reverse(sas_expander, sas_expander_next, + &mrioc->sas_expander_list, list) { + if (sas_expander->non_responding) { + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); + mpi3mr_expander_node_remove(mrioc, sas_expander); + spin_lock_irqsave(&mrioc->sas_node_lock, flags); + } + } + spin_unlock_irqrestore(&mrioc->sas_node_lock, flags); +} + +/** * mpi3mr_expander_node_add - insert an expander to the list. * @mrioc: Adapter instance reference * @sas_expander: Expander sas node |