[SCSI] mptsas: add support for enclosure and bay identifier attributes
Adds support to retrieve the enclosure and bay identifiers. This patch is from Eric with minor modifications from me, rewritten from a buggy patch of mine, based on the earlier CSMI implementation from Eric.. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig
James Bottomley
parent
ae198df377
commit
e3094447e0
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@ -117,6 +117,8 @@ struct mptsas_hotplug_event {
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struct mptsas_devinfo {
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u16 handle; /* unique id to address this device */
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u16 handle_parent; /* unique id to address parent device */
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u16 handle_enclosure; /* enclosure identifier of the enclosure */
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u16 slot; /* physical slot in enclosure */
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u8 phy_id; /* phy number of parent device */
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u8 port_id; /* sas physical port this device
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is assoc'd with */
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@ -146,6 +148,18 @@ struct mptsas_portinfo {
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struct mptsas_phyinfo *phy_info;
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};
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struct mptsas_enclosure {
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u64 enclosure_logical_id; /* The WWN for the enclosure */
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u16 enclosure_handle; /* unique id to address this */
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u16 flags; /* details enclosure management */
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u16 num_slot; /* num slots */
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u16 start_slot; /* first slot */
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u8 start_id; /* starting logical target id */
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u8 start_channel; /* starting logical channel id */
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u8 sep_id; /* SEP device logical target id */
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u8 sep_channel; /* SEP channel logical channel id */
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};
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#ifdef SASDEBUG
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static void mptsas_print_phy_data(MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
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@ -205,6 +219,7 @@ static void mptsas_print_device_pg0(SasDevicePage0_t *pg0)
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printk("---- SAS DEVICE PAGE 0 ---------\n");
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printk("Handle=0x%X\n" ,le16_to_cpu(pg0->DevHandle));
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printk("Parent Handle=0x%X\n" ,le16_to_cpu(pg0->ParentDevHandle));
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printk("Enclosure Handle=0x%X\n", le16_to_cpu(pg0->EnclosureHandle));
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printk("Slot=0x%X\n", le16_to_cpu(pg0->Slot));
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printk("SAS Address=0x%llX\n", le64_to_cpu(sas_address));
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@ -243,6 +258,82 @@ static void mptsas_print_expander_pg1(SasExpanderPage1_t *pg1)
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#define mptsas_print_expander_pg1(pg1) do { } while (0)
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#endif
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static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy)
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{
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struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
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return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
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}
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static inline MPT_ADAPTER *rphy_to_ioc(struct sas_rphy *rphy)
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{
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struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
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return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
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}
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static int
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mptsas_sas_exclosure_pg0(MPT_ADAPTER *ioc, struct mptsas_enclosure *enclosure,
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u32 form, u32 form_specific)
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{
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ConfigExtendedPageHeader_t hdr;
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CONFIGPARMS cfg;
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SasEnclosurePage0_t *buffer;
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dma_addr_t dma_handle;
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int error;
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__le64 le_identifier;
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memset(&hdr, 0, sizeof(hdr));
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hdr.PageVersion = MPI_SASENCLOSURE0_PAGEVERSION;
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hdr.PageNumber = 0;
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hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
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hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_ENCLOSURE;
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cfg.cfghdr.ehdr = &hdr;
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cfg.physAddr = -1;
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cfg.pageAddr = form + form_specific;
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cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
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cfg.dir = 0; /* read */
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cfg.timeout = 10;
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error = mpt_config(ioc, &cfg);
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if (error)
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goto out;
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if (!hdr.ExtPageLength) {
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error = -ENXIO;
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goto out;
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}
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buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
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&dma_handle);
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if (!buffer) {
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error = -ENOMEM;
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goto out;
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}
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cfg.physAddr = dma_handle;
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cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
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error = mpt_config(ioc, &cfg);
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if (error)
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goto out_free_consistent;
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/* save config data */
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memcpy(&le_identifier, &buffer->EnclosureLogicalID, sizeof(__le64));
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enclosure->enclosure_logical_id = le64_to_cpu(le_identifier);
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enclosure->enclosure_handle = le16_to_cpu(buffer->EnclosureHandle);
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enclosure->flags = le16_to_cpu(buffer->Flags);
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enclosure->num_slot = le16_to_cpu(buffer->NumSlots);
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enclosure->start_slot = le16_to_cpu(buffer->StartSlot);
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enclosure->start_id = buffer->StartTargetID;
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enclosure->start_channel = buffer->StartBus;
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enclosure->sep_id = buffer->SEPTargetID;
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enclosure->sep_channel = buffer->SEPBus;
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out_free_consistent:
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pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
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buffer, dma_handle);
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out:
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return error;
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}
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/*
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* This is pretty ugly. We will be able to seriously clean it up
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@ -399,12 +490,6 @@ static struct scsi_host_template mptsas_driver_template = {
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.use_clustering = ENABLE_CLUSTERING,
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};
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static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy)
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{
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struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
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return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
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}
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static int mptsas_get_linkerrors(struct sas_phy *phy)
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{
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MPT_ADAPTER *ioc = phy_to_ioc(phy);
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@ -546,8 +631,67 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
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return error;
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}
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static int
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mptsas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
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{
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MPT_ADAPTER *ioc = rphy_to_ioc(rphy);
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int i, error;
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struct mptsas_portinfo *p;
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struct mptsas_enclosure enclosure_info;
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u64 enclosure_handle;
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mutex_lock(&ioc->sas_topology_mutex);
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list_for_each_entry(p, &ioc->sas_topology, list) {
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for (i = 0; i < p->num_phys; i++) {
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if (p->phy_info[i].attached.sas_address ==
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rphy->identify.sas_address) {
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enclosure_handle = p->phy_info[i].
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attached.handle_enclosure;
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goto found_info;
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}
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}
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}
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mutex_unlock(&ioc->sas_topology_mutex);
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return -ENXIO;
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found_info:
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mutex_unlock(&ioc->sas_topology_mutex);
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memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure));
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error = mptsas_sas_exclosure_pg0(ioc, &enclosure_info,
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(MPI_SAS_ENCLOS_PGAD_FORM_HANDLE <<
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MPI_SAS_ENCLOS_PGAD_FORM_SHIFT), enclosure_handle);
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if (!error)
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*identifier = enclosure_info.enclosure_logical_id;
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return error;
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}
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static int
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mptsas_get_bay_identifier(struct sas_rphy *rphy)
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{
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MPT_ADAPTER *ioc = rphy_to_ioc(rphy);
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struct mptsas_portinfo *p;
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int i, rc;
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mutex_lock(&ioc->sas_topology_mutex);
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list_for_each_entry(p, &ioc->sas_topology, list) {
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for (i = 0; i < p->num_phys; i++) {
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if (p->phy_info[i].attached.sas_address ==
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rphy->identify.sas_address) {
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rc = p->phy_info[i].attached.slot;
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goto out;
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}
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}
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}
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rc = -ENXIO;
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out:
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mutex_unlock(&ioc->sas_topology_mutex);
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return rc;
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}
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static struct sas_function_template mptsas_transport_functions = {
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.get_linkerrors = mptsas_get_linkerrors,
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.get_enclosure_identifier = mptsas_get_enclosure_identifier,
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.get_bay_identifier = mptsas_get_bay_identifier,
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.phy_reset = mptsas_phy_reset,
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};
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@ -739,6 +883,9 @@ mptsas_sas_device_pg0(MPT_ADAPTER *ioc, struct mptsas_devinfo *device_info,
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device_info->handle = le16_to_cpu(buffer->DevHandle);
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device_info->handle_parent = le16_to_cpu(buffer->ParentDevHandle);
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device_info->handle_enclosure =
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le16_to_cpu(buffer->EnclosureHandle);
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device_info->slot = le16_to_cpu(buffer->Slot);
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device_info->phy_id = buffer->PhyNum;
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device_info->port_id = buffer->PhysicalPort;
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device_info->id = buffer->TargetID;
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@ -1335,29 +1482,15 @@ mptsas_hotplug_work(void *arg)
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case MPTSAS_ADD_DEVICE:
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/*
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* When there is no sas address,
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* RAID volumes are being deleted,
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* and hidden phy disk are being added.
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* We don't know the SAS data yet,
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* so lookup sas device page to get
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* pertaining info
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* Refresh sas device pg0 data
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*/
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if (!ev->sas_address) {
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if (mptsas_sas_device_pg0(ioc,
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&sas_device, ev->id,
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(MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID <<
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MPI_SAS_DEVICE_PGAD_FORM_SHIFT)))
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break;
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ev->handle = sas_device.handle;
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ev->parent_handle = sas_device.handle_parent;
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ev->channel = sas_device.channel;
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ev->phy_id = sas_device.phy_id;
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ev->sas_address = sas_device.sas_address;
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ev->device_info = sas_device.device_info;
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}
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if (mptsas_sas_device_pg0(ioc, &sas_device,
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(MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID <<
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MPI_SAS_DEVICE_PGAD_FORM_SHIFT), ev->id))
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break;
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phy_info = mptsas_find_phyinfo_by_parent(ioc,
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ev->parent_handle, ev->phy_id);
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sas_device.handle_parent, sas_device.phy_id);
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if (!phy_info) {
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printk("mptsas: add event for non-existant PHY.\n");
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break;
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@ -1368,14 +1501,8 @@ mptsas_hotplug_work(void *arg)
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break;
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}
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/* fill attached info */
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phy_info->attached.handle = ev->handle;
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phy_info->attached.phy_id = ev->phy_id;
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phy_info->attached.port_id = phy_info->identify.port_id;
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phy_info->attached.id = ev->id;
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phy_info->attached.channel = ev->channel;
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phy_info->attached.sas_address = ev->sas_address;
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phy_info->attached.device_info = ev->device_info;
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memcpy(&phy_info->attached, &sas_device,
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sizeof(struct mptsas_devinfo));
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if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET)
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ds = "ssp";
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@ -1393,7 +1520,6 @@ mptsas_hotplug_work(void *arg)
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if (!rphy)
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break; /* non-fatal: an rphy can be added later */
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rphy->scsi_target_id = phy_info->attached.id;
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mptsas_parse_device_info(&rphy->identify, &phy_info->attached);
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if (sas_rphy_add(rphy)) {
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sas_rphy_free(rphy);
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