diff options
Diffstat (limited to 'drivers/message/fusion/mptsas.c')
| -rw-r--r-- | drivers/message/fusion/mptsas.c | 818 |
1 files changed, 641 insertions, 177 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 2512d0e6155..010d4a39269 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -104,6 +104,13 @@ struct mptsas_hotplug_event { u16 handle; u16 parent_handle; u8 phy_id; + u8 phys_disk_num; + u8 phys_disk_num_valid; +}; + +struct mptsas_discovery_event { + struct work_struct work; + MPT_ADAPTER *ioc; }; /* @@ -117,6 +124,8 @@ struct mptsas_hotplug_event { struct mptsas_devinfo { u16 handle; /* unique id to address this device */ u16 handle_parent; /* unique id to address parent device */ + u16 handle_enclosure; /* enclosure identifier of the enclosure */ + u16 slot; /* physical slot in enclosure */ u8 phy_id; /* phy number of parent device */ u8 port_id; /* sas physical port this device is assoc'd with */ @@ -137,6 +146,7 @@ struct mptsas_phyinfo { struct mptsas_devinfo attached; /* point to attached device info */ struct sas_phy *phy; struct sas_rphy *rphy; + struct scsi_target *starget; }; struct mptsas_portinfo { @@ -146,6 +156,17 @@ struct mptsas_portinfo { struct mptsas_phyinfo *phy_info; }; +struct mptsas_enclosure { + u64 enclosure_logical_id; /* The WWN for the enclosure */ + u16 enclosure_handle; /* unique id to address this */ + u16 flags; /* details enclosure management */ + u16 num_slot; /* num slots */ + u16 start_slot; /* first slot */ + u8 start_id; /* starting logical target id */ + u8 start_channel; /* starting logical channel id */ + u8 sep_id; /* SEP device logical target id */ + u8 sep_channel; /* SEP channel logical channel id */ +}; #ifdef SASDEBUG static void mptsas_print_phy_data(MPI_SAS_IO_UNIT0_PHY_DATA *phy_data) @@ -205,6 +226,7 @@ static void mptsas_print_device_pg0(SasDevicePage0_t *pg0) printk("---- SAS DEVICE PAGE 0 ---------\n"); printk("Handle=0x%X\n" ,le16_to_cpu(pg0->DevHandle)); + printk("Parent Handle=0x%X\n" ,le16_to_cpu(pg0->ParentDevHandle)); printk("Enclosure Handle=0x%X\n", le16_to_cpu(pg0->EnclosureHandle)); printk("Slot=0x%X\n", le16_to_cpu(pg0->Slot)); printk("SAS Address=0x%llX\n", le64_to_cpu(sas_address)); @@ -243,6 +265,111 @@ static void mptsas_print_expander_pg1(SasExpanderPage1_t *pg1) #define mptsas_print_expander_pg1(pg1) do { } while (0) #endif +static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy) +{ + struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); + return ((MPT_SCSI_HOST *)shost->hostdata)->ioc; +} + +static inline MPT_ADAPTER *rphy_to_ioc(struct sas_rphy *rphy) +{ + struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); + return ((MPT_SCSI_HOST *)shost->hostdata)->ioc; +} + +/* + * mptsas_find_portinfo_by_handle + * + * This function should be called with the sas_topology_mutex already held + */ +static struct mptsas_portinfo * +mptsas_find_portinfo_by_handle(MPT_ADAPTER *ioc, u16 handle) +{ + struct mptsas_portinfo *port_info, *rc=NULL; + int i; + + list_for_each_entry(port_info, &ioc->sas_topology, list) + for (i = 0; i < port_info->num_phys; i++) + if (port_info->phy_info[i].identify.handle == handle) { + rc = port_info; + goto out; + } + out: + return rc; +} + +static int +mptsas_sas_enclosure_pg0(MPT_ADAPTER *ioc, struct mptsas_enclosure *enclosure, + u32 form, u32 form_specific) +{ + ConfigExtendedPageHeader_t hdr; + CONFIGPARMS cfg; + SasEnclosurePage0_t *buffer; + dma_addr_t dma_handle; + int error; + __le64 le_identifier; + + memset(&hdr, 0, sizeof(hdr)); + hdr.PageVersion = MPI_SASENCLOSURE0_PAGEVERSION; + hdr.PageNumber = 0; + hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED; + hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_ENCLOSURE; + + cfg.cfghdr.ehdr = &hdr; + cfg.physAddr = -1; + cfg.pageAddr = form + form_specific; + cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; + cfg.dir = 0; /* read */ + cfg.timeout = 10; + + error = mpt_config(ioc, &cfg); + if (error) + goto out; + if (!hdr.ExtPageLength) { + error = -ENXIO; + goto out; + } + + buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4, + &dma_handle); + if (!buffer) { + error = -ENOMEM; + goto out; + } + + cfg.physAddr = dma_handle; + cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; + + error = mpt_config(ioc, &cfg); + if (error) + goto out_free_consistent; + + /* save config data */ + memcpy(&le_identifier, &buffer->EnclosureLogicalID, sizeof(__le64)); + enclosure->enclosure_logical_id = le64_to_cpu(le_identifier); + enclosure->enclosure_handle = le16_to_cpu(buffer->EnclosureHandle); + enclosure->flags = le16_to_cpu(buffer->Flags); + enclosure->num_slot = le16_to_cpu(buffer->NumSlots); + enclosure->start_slot = le16_to_cpu(buffer->StartSlot); + enclosure->start_id = buffer->StartTargetID; + enclosure->start_channel = buffer->StartBus; + enclosure->sep_id = buffer->SEPTargetID; + enclosure->sep_channel = buffer->SEPBus; + + out_free_consistent: + pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, + buffer, dma_handle); + out: + return error; +} + +static int +mptsas_slave_configure(struct scsi_device *sdev) +{ + sas_read_port_mode_page(sdev); + + return mptscsih_slave_configure(sdev); +} /* * This is pretty ugly. We will be able to seriously clean it up @@ -259,6 +386,7 @@ mptsas_slave_alloc(struct scsi_device *sdev) VirtTarget *vtarget; VirtDevice *vdev; struct scsi_target *starget; + u32 target_id; int i; vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL); @@ -267,10 +395,10 @@ mptsas_slave_alloc(struct scsi_device *sdev) hd->ioc->name, sizeof(VirtDevice)); return -ENOMEM; } - vdev->ioc_id = hd->ioc->id; sdev->hostdata = vdev; starget = scsi_target(sdev); vtarget = starget->hostdata; + vtarget->ioc_id = hd->ioc->id; vdev->vtarget = vtarget; if (vtarget->num_luns == 0) { vtarget->tflags = MPT_TARGET_FLAGS_Q_YES|MPT_TARGET_FLAGS_VALID_INQUIRY; @@ -281,8 +409,8 @@ mptsas_slave_alloc(struct scsi_device *sdev) RAID volumes placed beyond the last expected port. */ if (sdev->channel == hd->ioc->num_ports) { - vdev->target_id = sdev->id; - vdev->bus_id = 0; + target_id = sdev->id; + vtarget->bus_id = 0; vdev->lun = 0; goto out; } @@ -293,11 +421,21 @@ mptsas_slave_alloc(struct scsi_device *sdev) for (i = 0; i < p->num_phys; i++) { if (p->phy_info[i].attached.sas_address == rphy->identify.sas_address) { - vdev->target_id = - p->phy_info[i].attached.id; - vdev->bus_id = p->phy_info[i].attached.channel; + target_id = p->phy_info[i].attached.id; + vtarget->bus_id = p->phy_info[i].attached.channel; vdev->lun = sdev->lun; - mutex_unlock(&hd->ioc->sas_topology_mutex); + p->phy_info[i].starget = sdev->sdev_target; + /* + * Exposing hidden disk (RAID) + */ + if (mptscsih_is_phys_disk(hd->ioc, target_id)) { + target_id = mptscsih_raid_id_to_num(hd, + target_id); + vdev->vtarget->tflags |= + MPT_TARGET_FLAGS_RAID_COMPONENT; + sdev->no_uld_attach = 1; + } + mutex_unlock(&hd->ioc->sas_topology_mutex); goto out; } } @@ -308,9 +446,7 @@ mptsas_slave_alloc(struct scsi_device *sdev) return -ENXIO; out: - vtarget->ioc_id = vdev->ioc_id; - vtarget->target_id = vdev->target_id; - vtarget->bus_id = vdev->bus_id; + vtarget->target_id = target_id; vtarget->num_luns++; return 0; } @@ -320,41 +456,17 @@ mptsas_slave_destroy(struct scsi_device *sdev) { struct Scsi_Host *host = sdev->host; MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)host->hostdata; - struct sas_rphy *rphy; - struct mptsas_portinfo *p; - int i; VirtDevice *vdev; /* - * Handle hotplug removal case. - * We need to clear out attached data structure. - */ - rphy = dev_to_rphy(sdev->sdev_target->dev.parent); - - mutex_lock(&hd->ioc->sas_topology_mutex); - list_for_each_entry(p, &hd->ioc->sas_topology, list) { - for (i = 0; i < p->num_phys; i++) { - if (p->phy_info[i].attached.sas_address == - rphy->identify.sas_address) { - memset(&p->phy_info[i].attached, 0, - sizeof(struct mptsas_devinfo)); - p->phy_info[i].rphy = NULL; - goto out; - } - } - } - - out: - mutex_unlock(&hd->ioc->sas_topology_mutex); - /* * Issue target reset to flush firmware outstanding commands. */ vdev = sdev->hostdata; if (vdev->configured_lun){ if (mptscsih_TMHandler(hd, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, - vdev->bus_id, - vdev->target_id, + vdev->vtarget->bus_id, + vdev->vtarget->target_id, 0, 0, 5 /* 5 second timeout */) < 0){ @@ -364,7 +476,7 @@ mptsas_slave_destroy(struct scsi_device *sdev) printk(MYIOC_s_WARN_FMT "Error processing TaskMgmt id=%d TARGET_RESET\n", hd->ioc->name, - vdev->target_id); + vdev->vtarget->target_id); hd->tmPending = 0; hd->tmState = TM_STATE_NONE; @@ -382,7 +494,7 @@ static struct scsi_host_template mptsas_driver_template = { .queuecommand = mptscsih_qcmd, .target_alloc = mptscsih_target_alloc, .slave_alloc = mptsas_slave_alloc, - .slave_configure = mptscsih_slave_configure, + .slave_configure = mptsas_slave_configure, .target_destroy = mptscsih_target_destroy, .slave_destroy = mptsas_slave_destroy, .change_queue_depth = mptscsih_change_queue_depth, @@ -399,12 +511,6 @@ static struct scsi_host_template mptsas_driver_template = { .use_clustering = ENABLE_CLUSTERING, }; -static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy) -{ - struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); - return ((MPT_SCSI_HOST *)shost->hostdata)->ioc; -} - static int mptsas_get_linkerrors(struct sas_phy *phy) { MPT_ADAPTER *ioc = phy_to_ioc(phy); @@ -546,8 +652,67 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset) return error; } +static int +mptsas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) +{ + MPT_ADAPTER *ioc = rphy_to_ioc(rphy); + int i, error; + struct mptsas_portinfo *p; + struct mptsas_enclosure enclosure_info; + u64 enclosure_handle; + + mutex_lock(&ioc->sas_topology_mutex); + list_for_each_entry(p, &ioc->sas_topology, list) { + for (i = 0; i < p->num_phys; i++) { + if (p->phy_info[i].attached.sas_address == + rphy->identify.sas_address) { + enclosure_handle = p->phy_info[i]. + attached.handle_enclosure; + goto found_info; + } + } + } + mutex_unlock(&ioc->sas_topology_mutex); + return -ENXIO; + + found_info: + mutex_unlock(&ioc->sas_topology_mutex); + memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure)); + error = mptsas_sas_enclosure_pg0(ioc, &enclosure_info, + (MPI_SAS_ENCLOS_PGAD_FORM_HANDLE << + MPI_SAS_ENCLOS_PGAD_FORM_SHIFT), enclosure_handle); + if (!error) + *identifier = enclosure_info.enclosure_logical_id; + return error; +} + +static int +mptsas_get_bay_identifier(struct sas_rphy *rphy) +{ + MPT_ADAPTER *ioc = rphy_to_ioc(rphy); + struct mptsas_portinfo *p; + int i, rc; + + mutex_lock(&ioc->sas_topology_mutex); + list_for_each_entry(p, &ioc->sas_topology, list) { + for (i = 0; i < p->num_phys; i++) { + if (p->phy_info[i].attached.sas_address == + rphy->identify.sas_address) { + rc = p->phy_info[i].attached.slot; + goto out; + } + } + } + rc = -ENXIO; + out: + mutex_unlock(&ioc->sas_topology_mutex); + return rc; +} + static struct sas_function_template mptsas_transport_functions = { .get_linkerrors = mptsas_get_linkerrors, + .get_enclosure_identifier = mptsas_get_enclosure_identifier, + .get_bay_identifier = mptsas_get_bay_identifier, .phy_reset = mptsas_phy_reset, }; @@ -607,6 +772,9 @@ mptsas_sas_io_unit_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info) goto out_free_consistent; } + if (port_info->num_phys) + port_info->handle = + le16_to_cpu(buffer->PhyData[0].ControllerDevHandle); for (i = 0; i < port_info->num_phys; i++) { mptsas_print_phy_data(&buffer->PhyData[i]); port_info->phy_info[i].phy_id = i; @@ -713,6 +881,7 @@ mptsas_sas_device_pg0(MPT_ADAPTER *ioc, struct mptsas_devinfo *device_info, cfg.dir = 0; /* read */ cfg.timeout = 10; + memset(device_info, 0, sizeof(struct mptsas_devinfo)); error = mpt_config(ioc, &cfg); if (error) goto out; @@ -739,6 +908,9 @@ mptsas_sas_device_pg0(MPT_ADAPTER *ioc, struct mptsas_devinfo *device_info, device_info->handle = le16_to_cpu(buffer->DevHandle); device_info->handle_parent = le16_to_cpu(buffer->ParentDevHandle); + device_info->handle_enclosure = + le16_to_cpu(buffer->EnclosureHandle); + device_info->slot = le16_to_cpu(buffer->Slot); device_info->phy_id = buffer->PhyNum; device_info->port_id = buffer->PhysicalPort; device_info->id = buffer->TargetID; @@ -780,6 +952,7 @@ mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info, cfg.dir = 0; /* read */ cfg.timeout = 10; + memset(port_info, 0, sizeof(struct mptsas_portinfo)); error = mpt_config(ioc, &cfg); if (error) goto out; @@ -880,7 +1053,6 @@ mptsas_sas_expander_pg1(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle); phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle); - out_free_consistent: pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4, buffer, dma_handle); @@ -970,12 +1142,19 @@ mptsas_parse_device_info(struct sas_identify *identify, static int mptsas_probe_one_phy(struct device *dev, struct mptsas_phyinfo *phy_info, int index, int local) { + MPT_ADAPTER *ioc; struct sas_phy *phy; int error; - phy = sas_phy_alloc(dev, index); - if (!phy) - return -ENOMEM; + if (!dev) + return -ENODEV; + + if (!phy_info->phy) { + phy = sas_phy_alloc(dev, index); + if (!phy) + return -ENOMEM; + } else + phy = phy_info->phy; phy->port_identifier = phy_info->port_id; mptsas_parse_device_info(&phy->identify, &phy_info->identify); @@ -1061,24 +1240,54 @@ static int mptsas_probe_one_phy(struct device *dev, break; } - if (local) - phy->local_attached = 1; + if (!phy_info->phy) { - error = sas_phy_add(phy); - if (error) { - sas_phy_free(phy); - return error; + if (local) + phy->local_attached = 1; + + error = sas_phy_add(phy); + if (error) { + sas_phy_free(phy); + return error; + } + phy_info->phy = phy; } - phy_info->phy = phy; - if (phy_info->attached.handle) { + if ((phy_info->attached.handle) && + (!phy_info->rphy)) { + struct sas_rphy *rphy; + struct sas_identify identify; + + ioc = phy_to_ioc(phy_info->phy); - rphy = sas_rphy_alloc(phy); + /* + * Let the hotplug_work thread handle processing + * the adding/removing of devices that occur + * after start of day. + */ + if (ioc->sas_discovery_runtime && + mptsas_is_end_device(&phy_info->attached)) + return 0; + + mptsas_parse_device_info(&identify, &phy_info->attached); + switch (identify.device_type) { + case SAS_END_DEVICE: + rphy = sas_end_device_alloc(phy); + break; + case SAS_EDGE_EXPANDER_DEVICE: + case SAS_FANOUT_EXPANDER_DEVICE: + rphy = sas_expander_alloc(phy, identify.device_type); + break; + default: + rphy = NULL; + break; + } if (!rphy) return 0; /* non-fatal: an rphy can be added later */ - mptsas_parse_device_info(&rphy->identify, &phy_info->attached); + rphy->identify = identify; + error = sas_rphy_add(rphy); if (error) { sas_rphy_free(rphy); @@ -1092,24 +1301,37 @@ static int mptsas_probe_one_phy(struct device *dev, } static int -mptsas_probe_hba_phys(MPT_ADAPTER *ioc, int *index) +mptsas_probe_hba_phys(MPT_ADAPTER *ioc) { - struct mptsas_portinfo *port_info; + struct mptsas_portinfo *port_info, *hba; u32 handle = 0xFFFF; int error = -ENOMEM, i; - port_info = kzalloc(sizeof(*port_info), GFP_KERNEL); - if (!port_info) + hba = kzalloc(sizeof(*port_info), GFP_KERNEL); + if (! hba) goto out; - error = mptsas_sas_io_unit_pg0(ioc, port_info); + error = mptsas_sas_io_unit_pg0(ioc, hba); if (error) goto out_free_port_info; - ioc->num_ports = port_info->num_phys; mutex_lock(&ioc->sas_topology_mutex); - list_add_tail(&port_info->list, &ioc->sas_topology); + port_info = mptsas_find_portinfo_by_handle(ioc, hba->handle); + if (!port_info) { + port_info = hba; + list_add_tail(&port_info->list, &ioc->sas_topology); + } else { + port_info->handle = hba->handle; + for (i = 0; i < hba->num_phys; i++) + port_info->phy_info[i].negotiated_link_rate = + hba->phy_info[i].negotiated_link_rate; + if (hba->phy_info) + kfree(hba->phy_info); + kfree(hba); + hba = NULL; + } mutex_unlock(&ioc->sas_topology_mutex); + ioc->num_ports = port_info->num_phys; for (i = 0; i < port_info->num_phys; i++) { mptsas_sas_phy_pg0(ioc, &port_info->phy_info[i], @@ -1132,38 +1354,49 @@ mptsas_probe_hba_phys(MPT_ADAPTER *ioc, int *index) } mptsas_probe_one_phy(&ioc->sh->shost_gendev, - &port_info->phy_info[i], *index, 1); - (*index)++; + &port_info->phy_info[i], ioc->sas_index, 1); + ioc->sas_index++; } return 0; out_free_port_info: - kfree(port_info); + if (hba) + kfree(hba); out: return error; } static int -mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle, int *index) +mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle) { - struct mptsas_portinfo *port_info, *p; + struct mptsas_portinfo *port_info, *p, *ex; int error = -ENOMEM, i, j; - port_info = kzalloc(sizeof(*port_info), GFP_KERNEL); - if (!port_info) + ex = kzalloc(sizeof(*port_info), GFP_KERNEL); + if (!ex) goto out; - error = mptsas_sas_expander_pg0(ioc, port_info, + error = mptsas_sas_expander_pg0(ioc, ex, (MPI_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE << MPI_SAS_EXPAND_PGAD_FORM_SHIFT), *handle); if (error) goto out_free_port_info; - *handle = port_info->handle; + *handle = ex->handle; mutex_lock(&ioc->sas_topology_mutex); - list_add_tail(&port_info->list, &ioc->sas_topology); + port_info = mptsas_find_portinfo_by_handle(ioc, *handle); + if (!port_info) { + port_info = ex; + list_add_tail(&port_info->list, &ioc->sas_topology); + } else { + port_info->handle = ex->handle; + if (ex->phy_info) + kfree(ex->phy_info); + kfree(ex); + ex = NULL; + } mutex_unlock(&ioc->sas_topology_mutex); for (i = 0; i < port_info->num_phys; i++) { @@ -1189,6 +1422,8 @@ mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle, int *index) (MPI_SAS_DEVICE_PGAD_FORM_HANDLE << MPI_SAS_DEVICE_PGAD_FORM_SHIFT), port_info->phy_info[i].attached.handle); + port_info->phy_info[i].attached.phy_id = + port_info->phy_info[i].phy_id; } /* @@ -1208,27 +1443,137 @@ mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle, int *index) mutex_unlock(&ioc->sas_topology_mutex); mptsas_probe_one_phy(parent, &port_info->phy_info[i], - *index, 0); - (*index)++; + ioc->sas_index, 0); + ioc->sas_index++; } return 0; out_free_port_info: - kfree(port_info); + if (ex) { + if (ex->phy_info) + kfree(ex->phy_info); + kfree(ex); + } out: return error; } +/* + * mptsas_delete_expander_phys + * + * + * This will traverse topology, and remove expanders + * that are no longer present + */ +static void +mptsas_delete_expander_phys(MPT_ADAPTER *ioc) +{ + struct mptsas_portinfo buffer; + struct mptsas_portinfo *port_info, *n, *parent; + int i; + + mutex_lock(&ioc->sas_topology_mutex); + list_for_each_entry_safe(port_info, n, &ioc->sas_topology, list) { + + if (port_info->phy_info && + (!(port_info->phy_info[0].identify.device_info & + MPI_SAS_DEVICE_INFO_SMP_TARGET))) + continue; + + if (mptsas_sas_expander_pg0(ioc, &buffer, + (MPI_SAS_EXPAND_PGAD_FORM_HANDLE << + MPI_SAS_EXPAND_PGAD_FORM_SHIFT), port_info->handle)) { + + /* + * Obtain the port_info instance to the parent port + */ + parent = mptsas_find_portinfo_by_handle(ioc, + port_info->phy_info[0].identify.handle_parent); + + if (!parent) + goto next_port; + + /* + * Delete rphys in the parent that point + * to this expander. The transport layer will + * cleanup all the children. + */ + for (i = 0; i < parent->num_phys; i++) { + if ((!parent->phy_info[i].rphy) || + (parent->phy_info[i].attached.sas_address != + port_info->phy_info[i].identify.sas_address)) + continue; + sas_rphy_delete(parent->phy_info[i].rphy); + memset(&parent->phy_info[i].attached, 0, + sizeof(struct mptsas_devinfo)); + parent->phy_info[i].rphy = NULL; + parent->phy_info[i].starget = NULL; + } + next_port: + list_del(&port_info->list); + if (port_info->phy_info) + kfree(port_info->phy_info); + kfree(port_info); + } + /* + * Free this memory allocated from inside + * mptsas_sas_expander_pg0 + */ + if (buffer.phy_info) + kfree(buffer.phy_info); + } + mutex_unlock(&ioc->sas_topology_mutex); +} + +/* + * Start of day discovery + */ static void mptsas_scan_sas_topology(MPT_ADAPTER *ioc) { u32 handle = 0xFFFF; - int index = 0; + int i; + + mutex_lock(&ioc->sas_discovery_mutex); + mptsas_probe_hba_phys(ioc); + while (!mptsas_probe_expander_phys(ioc, &handle)) + ; + /* + Reporting RAID volumes. + */ + if (!ioc->raid_data.pIocPg2) + goto out; + if (!ioc->raid_data.pIocPg2->NumActiveVolumes) + goto out; + for (i=0; i<ioc->raid_data.pIocPg2->NumActiveVolumes; i++) { + scsi_add_device(ioc->sh, ioc->num_ports, + ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0); + } + out: + mutex_unlock(&ioc->sas_discovery_mutex); +} + +/* + * Work queue thread to handle Runtime discovery + * Mere purpose is the hot add/delete of expanders + */ +static void +mptscsih_discovery_work(void * arg) +{ + struct mptsas_discovery_event *ev = arg; + MPT_ADAPTER *ioc = ev->ioc; + u32 handle = 0xFFFF; - mptsas_probe_hba_phys(ioc, &index); - while (!mptsas_probe_expander_phys(ioc, &handle, &index)) + mutex_lock(&ioc->sas_discovery_mutex); + ioc->sas_discovery_runtime=1; + mptsas_delete_expander_phys(ioc); + mptsas_probe_hba_phys(ioc); + while (!mptsas_probe_expander_phys(ioc, &handle)) ; + kfree(ev); + ioc->sas_discovery_runtime=0; + mutex_unlock(&ioc->sas_discovery_mutex); } static struct mptsas_phyinfo * @@ -1246,10 +1591,8 @@ mptsas_find_phyinfo_by_parent(MPT_ADAPTER *ioc, u16 parent_handle, u8 phy_id) (MPI_SAS_DEVICE_PGAD_FORM_HANDLE << MPI_SAS_DEVICE_PGAD_FORM_SHIFT), parent_handle); - if (error) { - printk("mptsas: failed to retrieve device page\n"); + if (error) return NULL; - } /* * The phy_info structures are never deallocated during lifetime of @@ -1296,6 +1639,35 @@ mptsas_find_phyinfo_by_target(MPT_ADAPTER *ioc, u32 id) return phy_info; } +/* + * Work queue thread to clear the persitency table + */ +static void +mptscsih_sas_persist_clear_table(void * arg) +{ + MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; + + mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT); +} + +static void +mptsas_reprobe_lun(struct scsi_device *sdev, void *data) +{ + sdev->no_uld_attach = data ? 1 : 0; + scsi_device_reprobe(sdev); +} + +static void +mptsas_reprobe_target(struct scsi_target *starget, int uld_attach) +{ + starget_for_each_device(starget, uld_attach ? (void *)1 : NULL, + mptsas_reprobe_lun); +} + + +/* + * Work queue thread to handle SAS hotplug events + */ static void mptsas_hotplug_work(void *arg) { @@ -1304,16 +1676,39 @@ mptsas_hotplug_work(void *arg) struct mptsas_phyinfo *phy_info; struct sas_rphy *rphy; struct scsi_device *sdev; + struct sas_identify identify; char *ds = NULL; struct mptsas_devinfo sas_device; + VirtTarget *vtarget; + + mutex_lock(&ioc->sas_discovery_mutex); switch (ev->event_type) { case MPTSAS_DEL_DEVICE: phy_info = mptsas_find_phyinfo_by_target(ioc, ev->id); - if (!phy_info) { - printk("mptsas: remove event for non-existant PHY.\n"); + + /* + * Sanity checks, for non-existing phys and remote rphys. + */ + if (!phy_info) break; + if (!phy_info->rphy) + break; + if (phy_info->starget) { + vtarget = phy_info->starget->hostdata; + + if (!vtarget) + break; + /* + * Handling RAID components + */ + if (ev->phys_disk_num_valid) { + vtarget->target_id = ev->phys_disk_num; + vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT; + mptsas_reprobe_target(vtarget->starget, 1); + break; + } } if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET) @@ -1327,55 +1722,74 @@ mptsas_hotplug_work(void *arg) "removing %s device, channel %d, id %d, phy %d\n", ioc->name, ds, ev->channel, ev->id, phy_info->phy_id); - if (phy_info->rphy) { - sas_rphy_delete(phy_info->rphy); - phy_info->rphy = NULL; - } + sas_rphy_delete(phy_info->rphy); + memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo)); + phy_info->rphy = NULL; + phy_info->starget = NULL; break; case MPTSAS_ADD_DEVICE: /* - * When there is no sas address, - * RAID volumes are being deleted, - * and hidden phy disk are being added. - * We don't know the SAS data yet, - * so lookup sas device page to get - * pertaining info + * Refresh sas device pg0 data */ - if (!ev->sas_address) { - if (mptsas_sas_device_pg0(ioc, - &sas_device, ev->id, - (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID << - MPI_SAS_DEVICE_PGAD_FORM_SHIFT))) - break; - ev->handle = sas_device.handle; - ev->parent_handle = sas_device.handle_parent; - ev->channel = sas_device.channel; - ev->phy_id = sas_device.phy_id; - ev->sas_address = sas_device.sas_address; - ev->device_info = sas_device.device_info; - } + if (mptsas_sas_device_pg0(ioc, &sas_device, + (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID << + MPI_SAS_DEVICE_PGAD_FORM_SHIFT), ev->id)) + break; phy_info = mptsas_find_phyinfo_by_parent(ioc, - ev->parent_handle, ev->phy_id); + sas_device.handle_parent, sas_device.phy_id); + if (!phy_info) { - printk("mptsas: add event for non-existant PHY.\n"); - break; + u32 handle = 0xFFFF; + + /* + * Its possible when an expander has been hot added + * containing attached devices, the sas firmware + * may send a RC_ADDED event prior to the + * DISCOVERY STOP event. If that occurs, our + * view of the topology in the driver in respect to this + * expander might of not been setup, and we hit this + * condition. + * Therefore, this code kicks off discovery to + * refresh the data. + * Then again, we check whether the parent phy has + * been created. + */ + ioc->sas_discovery_runtime=1; + mptsas_delete_expander_phys(ioc); + mptsas_probe_hba_phys(ioc); + while (!mptsas_probe_expander_phys(ioc, &handle)) + ; + ioc->sas_discovery_runtime=0; + + phy_info = mptsas_find_phyinfo_by_parent(ioc, + sas_device.handle_parent, sas_device.phy_id); + if (!phy_info) + break; } - if (phy_info->rphy) { - printk("mptsas: trying to add existing device.\n"); + if (phy_info->starget) { + vtarget = phy_info->starget->hostdata; + + if (!vtarget) + break; + /* + * Handling RAID components + */ + if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) { + vtarget->tflags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT; + vtarget->target_id = ev->id; + mptsas_reprobe_target(phy_info->starget, 0); + } break; } - /* fill attached info */ - phy_info->attached.handle = ev->handle; - phy_info->attached.phy_id = ev->phy_id; - phy_info->attached.port_id = phy_info->identify.port_id; - phy_info->attached.id = ev->id; - phy_info->attached.channel = ev->channel; - phy_info->attached.sas_address = ev->sas_address; - phy_info->attached.device_info = ev->device_info; + if (phy_info->rphy) + break; + + memcpy(&phy_info->attached, &sas_device, + sizeof(struct mptsas_devinfo)); if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET) ds = "ssp"; @@ -1388,13 +1802,23 @@ mptsas_hotplug_work(void *arg) "attaching %s device, channel %d, id %d, phy %d\n", ioc->name, ds, ev->channel, ev->id, ev->phy_id); - - rphy = sas_rphy_alloc(phy_info->phy); + mptsas_parse_device_info(&identify, &phy_info->attached); + switch (identify.device_type) { + case SAS_END_DEVICE: + rphy = sas_end_device_alloc(phy_info->phy); + break; + case SAS_EDGE_EXPANDER_DEVICE: + case SAS_FANOUT_EXPANDER_DEVICE: + rphy = sas_expander_alloc(phy_info->phy, identify.device_type); + break; + default: + rphy = NULL; + break; + } if (!rphy) break; /* non-fatal: an rphy can be added later */ - rphy->scsi_target_id = phy_info->attached.id; - mptsas_parse_device_info(&rphy->identify, &phy_info->attached); + rphy->identify = identify; if (sas_rphy_add(rphy)) { sas_rphy_free(rphy); break; @@ -1413,7 +1837,7 @@ mptsas_hotplug_work(void *arg) break; } printk(MYIOC_s_INFO_FMT - "attaching device, channel %d, id %d\n", + "attaching raid volume, channel %d, id %d\n", ioc->name, ioc->num_ports, ev->id); scsi_add_device(ioc->sh, ioc->num_ports, @@ -1430,7 +1854,7 @@ mptsas_hotplug_work(void *arg) if (!sdev) break; printk(MYIOC_s_INFO_FMT - "removing device, channel %d, id %d\n", + "removing raid volume, channel %d, id %d\n", ioc->name, ioc->num_ports, ev->id); scsi_remove_device(sdev); scsi_device_put(sdev); @@ -1439,6 +1863,7 @@ mptsas_hotplug_work(void *arg) } kfree(ev); + mutex_unlock(&ioc->sas_discovery_mutex); } static void @@ -1455,35 +1880,51 @@ mptscsih_send_sas_event(MPT_ADAPTER *ioc, MPI_SAS_DEVICE_INFO_SATA_DEVICE )) == 0) return; - if ((sas_event_data->ReasonCode & - (MPI_EVENT_SAS_DEV_STAT_RC_ADDED | - MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING)) == 0) - return; + switch (sas_event_data->ReasonCode) { + case MPI_EVENT_SAS_DEV_STAT_RC_ADDED: + case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING: + ev = kmalloc(sizeof(*ev), GFP_ATOMIC); + if (!ev) { + printk(KERN_WARNING "mptsas: lost hotplug event\n"); + break; + } - ev = kmalloc(sizeof(*ev), GFP_ATOMIC); - if (!ev) { - printk(KERN_WARNING "mptsas: lost hotplug event\n"); - return; + INIT_WORK(&ev->work, mptsas_hotplug_work, ev); + ev->ioc = ioc; + ev->handle = le16_to_cpu(sas_event_data->DevHandle); + ev->parent_handle = + le16_to_cpu(sas_event_data->ParentDevHandle); + ev->channel = sas_event_data->Bus; + ev->id = sas_event_data->TargetID; + ev->phy_id = sas_event_data->PhyNum; + memcpy(&sas_address, &sas_event_data->SASAddress, + sizeof(__le64)); + ev->sas_address = le64_to_cpu(sas_address); + ev->device_info = device_info; + + if (sas_event_data->ReasonCode & + MPI_EVENT_SAS_DEV_STAT_RC_ADDED) + ev->event_type = MPTSAS_ADD_DEVICE; + else + ev->event_type = MPTSAS_DEL_DEVICE; + schedule_work(&ev->work); + break; + case MPI_EVENT_SAS_DEV_STAT_RC_NO_PERSIST_ADDED: + /* + * Persistent table is full. + */ + INIT_WORK(&ioc->mptscsih_persistTask, + mptscsih_sas_persist_clear_table, + (void *)ioc); + schedule_work(&ioc->mptscsih_persistTask); + break; + case MPI_EVENT_SAS_DEV_STAT_RC_SMART_DATA: + /* TODO */ + case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET: + /* TODO */ + default: + break; } - - - INIT_WORK(&ev->work, mptsas_hotplug_work, ev); - ev->ioc = ioc; - ev->handle = le16_to_cpu(sas_event_data->DevHandle); - ev->parent_handle = le16_to_cpu(sas_event_data->ParentDevHandle); - ev->channel = sas_event_data->Bus; - ev->id = sas_event_data->TargetID; - ev->phy_id = sas_event_data->PhyNum; - memcpy(&sas_address, &sas_event_data->SASAddress, sizeof(__le64)); - ev->sas_address = le64_to_cpu(sas_address); - ev->device_info = device_info; - - if (sas_event_data->ReasonCode & MPI_EVENT_SAS_DEV_STAT_RC_ADDED) - ev->event_type = MPTSAS_ADD_DEVICE; - else - ev->event_type = MPTSAS_DEL_DEVICE; - - schedule_work(&ev->work); } static void @@ -1512,6 +1953,9 @@ mptscsih_send_raid_event(MPT_ADAPTER *ioc, ev->event_type = MPTSAS_ADD_DEVICE; break; case MPI_EVENT_RAID_RC_PHYSDISK_CREATED: + ioc->raid_data.isRaid = 1; + ev->phys_disk_num_valid = 1; + ev->phys_disk_num = raid_event_data->PhysDiskNum; ev->event_type = MPTSAS_DEL_DEVICE; break; case MPI_EVENT_RAID_RC_VOLUME_DELETED: @@ -1533,15 +1977,31 @@ mptscsih_send_raid_event(MPT_ADAPTER *ioc, schedule_work(&ev->work); } -/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ -/* work queue thread to clear the persitency table */ static void -mptscsih_sas_persist_clear_table(void * arg) +mptscsih_send_discovery(MPT_ADAPTER *ioc, + EVENT_DATA_SAS_DISCOVERY *discovery_data) { - MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg; + struct mptsas_discovery_event *ev; + + /* + * DiscoveryStatus + * + * This flag will be non-zero when firmware + * kicks off discovery, and return to zero + * once its completed. + */ + if (discovery_data->DiscoveryStatus) + return; + + ev = kmalloc(sizeof(*ev), GFP_ATOMIC); + if (!ev) + return; + memset(ev,0,sizeof(struct mptsas_discovery_event)); + INIT_WORK(&ev->work, mptscsih_discovery_work, ev); + ev->ioc = ioc; + schedule_work(&ev->work); +}; - mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT); -} static int mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply) @@ -1552,6 +2012,17 @@ mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply) if (!ioc->sh) goto out; + /* + * sas_discovery_ignore_events + * + * This flag is to prevent anymore processing of + * sas events once mptsas_remove function is called. + */ + if (ioc->sas_discovery_ignore_events) { + rc = mptscsih_event_process(ioc, reply); + goto out; + } + switch (event) { case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE: mptscsih_send_sas_event(ioc, @@ -1567,6 +2038,10 @@ mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply) (void *)ioc); schedule_work(&ioc->mptscsih_persistTask); break; + case MPI_EVENT_SAS_DISCOVERY: + mptscsih_send_discovery(ioc, + (EVENT_DATA_SAS_DISCOVERY *)reply->Data); + break; default: rc = mptscsih_event_process(ioc, reply); break; @@ -1668,7 +2143,7 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) INIT_LIST_HEAD(&ioc->sas_topology); mutex_init(&ioc->sas_topology_mutex); - + mutex_init(&ioc->sas_discovery_mutex); mutex_init(&ioc->sas_mgmt.mutex); init_completion(&ioc->sas_mgmt.done); @@ -1781,20 +2256,6 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id) mptsas_scan_sas_topology(ioc); - /* - Reporting RAID volumes. - */ - if (!ioc->raid_data.pIocPg2) - return 0; - if (!ioc->raid_data.pIocPg2->NumActiveVolumes) - return 0; - for (ii=0;ii<ioc->raid_data.pIocPg2->NumActiveVolumes;ii++) { - scsi_add_device(sh, - ioc->num_ports, - ioc->raid_data.pIocPg2->RaidVolume[ii].VolumeID, - 0); - } - return 0; out_mptsas_probe: @@ -1808,11 +2269,14 @@ static void __devexit mptsas_remove(struct pci_dev *pdev) MPT_ADAPTER *ioc = pci_get_drvdata(pdev); struct mptsas_portinfo *p, *n; + ioc->sas_discovery_ignore_events=1; sas_remove_host(ioc->sh); mutex_lock(&ioc->sas_topology_mutex); list_for_each_entry_safe(p, n, &ioc->sas_topology, list) { list_del(&p->list); + if (p->phy_info) + kfree(p->phy_info); kfree(p); } mutex_unlock(&ioc->sas_topology_mutex); @@ -1867,7 +2331,7 @@ mptsas_init(void) mptsasMgmtCtx = mpt_register(mptsas_mgmt_done, MPTSAS_DRIVER); if (mpt_event_register(mptsasDoneCtx, mptsas_event_process) == 0) { - devtprintk((KERN_INFO MYNAM + devtverboseprintk((KERN_INFO MYNAM ": Registered for IOC event notifications\n")); } |