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scsi: mpi3mr: Add expander devices to STL
Register/unregister the expander devices to SCSI Transport Layer(STL) whenever the corresponding expander is added/removed from topology. Link: https://lore.kernel.org/r/20220804131226.16653-10-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sreekanth Reddy
Martin K. Petersen
parent
c4723e68a0
commit
e22bae3066
3 changed files with 432 additions and 9 deletions
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@ -1341,6 +1341,11 @@ int mpi3mr_cfg_get_driver_pg1(struct mpi3mr_ioc *mrioc,
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struct mpi3_driver_page1 *driver_pg1, u16 pg_sz);
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u8 mpi3mr_is_expander_device(u16 device_info);
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int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle);
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void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
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struct mpi3mr_hba_port *hba_port);
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struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
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*mrioc, u16 handle);
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struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc,
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u8 port_id);
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void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc);
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@ -1348,6 +1353,8 @@ void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc);
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void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
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u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate,
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struct mpi3mr_hba_port *hba_port);
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void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
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struct mpi3mr_tgt_dev *tgtdev);
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void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
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bool device_add);
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#endif /*MPI3MR_H_INCLUDED*/
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@ -816,7 +816,7 @@ void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
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*
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* Return: 0 on success, non zero on failure.
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*/
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static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
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void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
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struct mpi3mr_tgt_dev *tgtdev)
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{
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struct mpi3mr_stgt_priv_data *tgt_priv;
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@ -1486,7 +1486,10 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
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int i;
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u16 handle;
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u8 reason_code;
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u64 exp_sas_address = 0;
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struct mpi3mr_hba_port *hba_port = NULL;
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struct mpi3mr_tgt_dev *tgtdev = NULL;
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struct mpi3mr_sas_node *sas_expander = NULL;
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mpi3mr_sastopochg_evt_debug(mrioc, event_data);
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@ -1516,6 +1519,13 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
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if (tgtdev)
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mpi3mr_tgtdev_put(tgtdev);
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}
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if (mrioc->sas_transport_enabled && (event_data->exp_status ==
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MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING)) {
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if (sas_expander)
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mpi3mr_expander_remove(mrioc, exp_sas_address,
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hba_port);
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}
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}
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/**
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@ -1736,7 +1746,8 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
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struct mpi3mr_fwevt *fwevt)
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{
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struct mpi3_device_page0 *dev_pg0 = NULL;
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u16 perst_id;
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u16 perst_id, handle, dev_info;
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struct mpi3_device0_sas_sata_format *sasinf = NULL;
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mpi3mr_fwevt_del_from_list(mrioc, fwevt);
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mrioc->current_event = fwevt;
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@ -1750,10 +1761,23 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
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switch (fwevt->event_id) {
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case MPI3_EVENT_DEVICE_ADDED:
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{
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struct mpi3_device_page0 *dev_pg0 =
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(struct mpi3_device_page0 *)fwevt->event_data;
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mpi3mr_report_tgtdev_to_host(mrioc,
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le16_to_cpu(dev_pg0->persistent_id));
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dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data;
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perst_id = le16_to_cpu(dev_pg0->persistent_id);
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handle = le16_to_cpu(dev_pg0->dev_handle);
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if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID)
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mpi3mr_report_tgtdev_to_host(mrioc, perst_id);
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else if (mrioc->sas_transport_enabled &&
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(dev_pg0->device_form == MPI3_DEVICE_DEVFORM_SAS_SATA)) {
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sasinf = &dev_pg0->device_specific.sas_sata_format;
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dev_info = le16_to_cpu(sasinf->device_info);
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if (!mrioc->sas_hba.num_phys)
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mpi3mr_sas_host_add(mrioc);
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else
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mpi3mr_sas_host_refresh(mrioc);
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if (mpi3mr_is_expander_device(dev_info))
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mpi3mr_expander_add(mrioc, handle);
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}
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break;
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}
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case MPI3_EVENT_DEVICE_INFO_CHANGED:
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@ -21,7 +21,7 @@
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*
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* Return: Expander sas_node object reference or NULL
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*/
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static struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
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struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
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*mrioc, u16 handle)
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{
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struct mpi3mr_sas_node *sas_expander, *r;
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@ -159,6 +159,45 @@ static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc
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return tgtdev;
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}
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/**
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* mpi3mr_remove_device_by_sas_address - remove the device
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* @mrioc: Adapter instance reference
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* @sas_address: SAS address of the device
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* @hba_port: HBA port entry
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*
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* This searches for target device using sas address and hba
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* port pointer then removes it from the OS.
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*
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* Return: None
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*/
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static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc,
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u64 sas_address, struct mpi3mr_hba_port *hba_port)
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{
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struct mpi3mr_tgt_dev *tgtdev = NULL;
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unsigned long flags;
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u8 was_on_tgtdev_list = 0;
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if (!hba_port)
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return;
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spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
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tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc,
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sas_address, hba_port);
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if (tgtdev) {
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if (!list_empty(&tgtdev->list)) {
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list_del_init(&tgtdev->list);
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was_on_tgtdev_list = 1;
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mpi3mr_tgtdev_put(tgtdev);
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}
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}
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spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
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if (was_on_tgtdev_list) {
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if (tgtdev->host_exposed)
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mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
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mpi3mr_tgtdev_put(tgtdev);
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}
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}
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/**
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* mpi3mr_expander_find_by_sas_address - sas expander search
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* @mrioc: Adapter instance reference
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@ -378,6 +417,34 @@ static void mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc *mrioc,
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}
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}
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/**
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* mpi3mr_delete_sas_port - helper function to removing a port
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* @mrioc: Adapter instance reference
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* @mr_sas_port: Internal Port object
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*
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* Return: None.
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*/
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static void mpi3mr_delete_sas_port(struct mpi3mr_ioc *mrioc,
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struct mpi3mr_sas_port *mr_sas_port)
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{
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u64 sas_address = mr_sas_port->remote_identify.sas_address;
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struct mpi3mr_hba_port *hba_port = mr_sas_port->hba_port;
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enum sas_device_type device_type =
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mr_sas_port->remote_identify.device_type;
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dev_info(&mr_sas_port->port->dev,
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"remove: sas_address(0x%016llx)\n",
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(unsigned long long) sas_address);
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if (device_type == SAS_END_DEVICE)
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mpi3mr_remove_device_by_sas_address(mrioc, sas_address,
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hba_port);
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else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
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device_type == SAS_FANOUT_EXPANDER_DEVICE)
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mpi3mr_expander_remove(mrioc, sas_address, hba_port);
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}
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/**
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* mpi3mr_del_phy_from_an_existing_port - del phy from a port
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* @mrioc: Adapter instance reference
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@ -401,8 +468,12 @@ static void mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc *mrioc,
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port_siblings) {
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if (srch_phy != mr_sas_phy)
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continue;
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mpi3mr_delete_sas_phy(mrioc, mr_sas_port,
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mr_sas_phy);
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if ((mr_sas_port->num_phys == 1) &&
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!mrioc->reset_in_progress)
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mpi3mr_delete_sas_port(mrioc, mr_sas_port);
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else
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mpi3mr_delete_sas_phy(mrioc, mr_sas_port,
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mr_sas_phy);
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return;
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}
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}
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@ -1231,3 +1302,324 @@ static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
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kfree(mr_sas_port);
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}
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/**
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* mpi3mr_expander_node_add - insert an expander to the list.
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* @mrioc: Adapter instance reference
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* @sas_expander: Expander sas node
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* Context: This function will acquire sas_node_lock.
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*
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* Adding new object to the ioc->sas_expander_list.
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*
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* Return: None.
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*/
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static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc,
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struct mpi3mr_sas_node *sas_expander)
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{
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unsigned long flags;
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spin_lock_irqsave(&mrioc->sas_node_lock, flags);
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list_add_tail(&sas_expander->list, &mrioc->sas_expander_list);
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spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
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}
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/**
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* mpi3mr_expander_add - Create expander object
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* @mrioc: Adapter instance reference
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* @handle: Expander firmware device handle
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*
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* This function creating expander object, stored in
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* sas_expander_list and expose it to the SAS transport
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* layer.
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*
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* Return: 0 for success, non-zero for failure.
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*/
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int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle)
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{
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struct mpi3mr_sas_node *sas_expander;
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struct mpi3mr_enclosure_node *enclosure_dev;
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struct mpi3_sas_expander_page0 expander_pg0;
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struct mpi3_sas_expander_page1 expander_pg1;
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u16 ioc_status, parent_handle, temp_handle;
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u64 sas_address, sas_address_parent = 0;
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int i;
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unsigned long flags;
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u8 port_id, link_rate;
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struct mpi3mr_sas_port *mr_sas_port = NULL;
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struct mpi3mr_hba_port *hba_port;
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u32 phynum_handle;
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int rc = 0;
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if (!handle)
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return -1;
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if (mrioc->reset_in_progress)
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return -1;
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if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
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sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) {
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ioc_err(mrioc, "failure at %s:%d/%s()!\n",
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__FILE__, __LINE__, __func__);
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return -1;
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}
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if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
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ioc_err(mrioc, "failure at %s:%d/%s()!\n",
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__FILE__, __LINE__, __func__);
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return -1;
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}
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parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle);
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if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent)
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!= 0) {
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ioc_err(mrioc, "failure at %s:%d/%s()!\n",
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__FILE__, __LINE__, __func__);
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return -1;
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}
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port_id = expander_pg0.io_unit_port;
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hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
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if (!hba_port) {
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ioc_err(mrioc, "failure at %s:%d/%s()!\n",
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__FILE__, __LINE__, __func__);
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return -1;
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}
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if (sas_address_parent != mrioc->sas_hba.sas_address) {
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spin_lock_irqsave(&mrioc->sas_node_lock, flags);
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sas_expander =
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mpi3mr_expander_find_by_sas_address(mrioc,
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sas_address_parent, hba_port);
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spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
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if (!sas_expander) {
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rc = mpi3mr_expander_add(mrioc, parent_handle);
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if (rc != 0)
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return rc;
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} else {
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/*
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* When there is a parent expander present, update it's
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* phys where child expander is connected with the link
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* speed, attached dev handle and sas address.
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*/
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for (i = 0 ; i < sas_expander->num_phys ; i++) {
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phynum_handle =
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(i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
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parent_handle;
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if (mpi3mr_cfg_get_sas_exp_pg1(mrioc,
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&ioc_status, &expander_pg1,
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sizeof(expander_pg1),
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MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
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phynum_handle)) {
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ioc_err(mrioc, "failure at %s:%d/%s()!\n",
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__FILE__, __LINE__, __func__);
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rc = -1;
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return rc;
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}
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if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
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ioc_err(mrioc, "failure at %s:%d/%s()!\n",
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__FILE__, __LINE__, __func__);
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rc = -1;
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return rc;
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}
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temp_handle = le16_to_cpu(
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expander_pg1.attached_dev_handle);
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if (temp_handle != handle)
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continue;
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link_rate = (expander_pg1.negotiated_link_rate &
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MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
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MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
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mpi3mr_update_links(mrioc, sas_address_parent,
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handle, i, link_rate, hba_port);
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}
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}
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}
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spin_lock_irqsave(&mrioc->sas_node_lock, flags);
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sas_address = le64_to_cpu(expander_pg0.sas_address);
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sas_expander = mpi3mr_expander_find_by_sas_address(mrioc,
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sas_address, hba_port);
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spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
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if (sas_expander)
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return 0;
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sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node),
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GFP_KERNEL);
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if (!sas_expander)
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return -1;
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sas_expander->handle = handle;
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sas_expander->num_phys = expander_pg0.num_phys;
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sas_expander->sas_address_parent = sas_address_parent;
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sas_expander->sas_address = sas_address;
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sas_expander->hba_port = hba_port;
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ioc_info(mrioc,
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"expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
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handle, parent_handle, (unsigned long long)
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sas_expander->sas_address, sas_expander->num_phys);
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if (!sas_expander->num_phys) {
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rc = -1;
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goto out_fail;
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}
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sas_expander->phy = kcalloc(sas_expander->num_phys,
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sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
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if (!sas_expander->phy) {
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rc = -1;
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goto out_fail;
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}
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INIT_LIST_HEAD(&sas_expander->sas_port_list);
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mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent,
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sas_expander->hba_port);
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if (!mr_sas_port) {
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||||
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
|
||||
__FILE__, __LINE__, __func__);
|
||||
rc = -1;
|
||||
goto out_fail;
|
||||
}
|
||||
sas_expander->parent_dev = &mr_sas_port->rphy->dev;
|
||||
sas_expander->rphy = mr_sas_port->rphy;
|
||||
|
||||
for (i = 0 ; i < sas_expander->num_phys ; i++) {
|
||||
phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
|
||||
handle;
|
||||
if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
|
||||
&expander_pg1, sizeof(expander_pg1),
|
||||
MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
|
||||
phynum_handle)) {
|
||||
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
|
||||
__FILE__, __LINE__, __func__);
|
||||
rc = -1;
|
||||
goto out_fail;
|
||||
}
|
||||
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
|
||||
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
|
||||
__FILE__, __LINE__, __func__);
|
||||
rc = -1;
|
||||
goto out_fail;
|
||||
}
|
||||
|
||||
sas_expander->phy[i].handle = handle;
|
||||
sas_expander->phy[i].phy_id = i;
|
||||
sas_expander->phy[i].hba_port = hba_port;
|
||||
|
||||
if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i],
|
||||
expander_pg1, sas_expander->parent_dev))) {
|
||||
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
|
||||
__FILE__, __LINE__, __func__);
|
||||
rc = -1;
|
||||
goto out_fail;
|
||||
}
|
||||
}
|
||||
|
||||
if (sas_expander->enclosure_handle) {
|
||||
enclosure_dev =
|
||||
mpi3mr_enclosure_find_by_handle(mrioc,
|
||||
sas_expander->enclosure_handle);
|
||||
if (enclosure_dev)
|
||||
sas_expander->enclosure_logical_id = le64_to_cpu(
|
||||
enclosure_dev->pg0.enclosure_logical_id);
|
||||
}
|
||||
|
||||
mpi3mr_expander_node_add(mrioc, sas_expander);
|
||||
return 0;
|
||||
|
||||
out_fail:
|
||||
|
||||
if (mr_sas_port)
|
||||
mpi3mr_sas_port_remove(mrioc,
|
||||
sas_expander->sas_address,
|
||||
sas_address_parent, sas_expander->hba_port);
|
||||
kfree(sas_expander->phy);
|
||||
kfree(sas_expander);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* mpi3mr_expander_node_remove - recursive removal of expander.
|
||||
* @mrioc: Adapter instance reference
|
||||
* @sas_expander: Expander device object
|
||||
*
|
||||
* Removes expander object and freeing associated memory from
|
||||
* the sas_expander_list and removes the same from SAS TL, if
|
||||
* one of the attached device is an expander then it recursively
|
||||
* removes the expander device too.
|
||||
*
|
||||
* Return nothing.
|
||||
*/
|
||||
static void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
|
||||
struct mpi3mr_sas_node *sas_expander)
|
||||
{
|
||||
struct mpi3mr_sas_port *mr_sas_port, *next;
|
||||
unsigned long flags;
|
||||
u8 port_id;
|
||||
|
||||
/* remove sibling ports attached to this expander */
|
||||
list_for_each_entry_safe(mr_sas_port, next,
|
||||
&sas_expander->sas_port_list, port_list) {
|
||||
if (mrioc->reset_in_progress)
|
||||
return;
|
||||
if (mr_sas_port->remote_identify.device_type ==
|
||||
SAS_END_DEVICE)
|
||||
mpi3mr_remove_device_by_sas_address(mrioc,
|
||||
mr_sas_port->remote_identify.sas_address,
|
||||
mr_sas_port->hba_port);
|
||||
else if (mr_sas_port->remote_identify.device_type ==
|
||||
SAS_EDGE_EXPANDER_DEVICE ||
|
||||
mr_sas_port->remote_identify.device_type ==
|
||||
SAS_FANOUT_EXPANDER_DEVICE)
|
||||
mpi3mr_expander_remove(mrioc,
|
||||
mr_sas_port->remote_identify.sas_address,
|
||||
mr_sas_port->hba_port);
|
||||
}
|
||||
|
||||
port_id = sas_expander->hba_port->port_id;
|
||||
mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address,
|
||||
sas_expander->sas_address_parent, sas_expander->hba_port);
|
||||
|
||||
ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
|
||||
sas_expander->handle, (unsigned long long)
|
||||
sas_expander->sas_address, port_id);
|
||||
|
||||
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
|
||||
list_del(&sas_expander->list);
|
||||
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
|
||||
|
||||
kfree(sas_expander->phy);
|
||||
kfree(sas_expander);
|
||||
}
|
||||
|
||||
/**
|
||||
* mpi3mr_expander_remove - Remove expander object
|
||||
* @mrioc: Adapter instance reference
|
||||
* @sas_address: Remove expander sas_address
|
||||
* @hba_port: HBA port reference
|
||||
*
|
||||
* This function remove expander object, stored in
|
||||
* mrioc->sas_expander_list and removes it from the SAS TL by
|
||||
* calling mpi3mr_expander_node_remove().
|
||||
*
|
||||
* Return: None
|
||||
*/
|
||||
void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
|
||||
struct mpi3mr_hba_port *hba_port)
|
||||
{
|
||||
struct mpi3mr_sas_node *sas_expander;
|
||||
unsigned long flags;
|
||||
|
||||
if (mrioc->reset_in_progress)
|
||||
return;
|
||||
|
||||
if (!hba_port)
|
||||
return;
|
||||
|
||||
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_expander_node_remove(mrioc, sas_expander);
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue