diff options
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 314 |
1 files changed, 295 insertions, 19 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index d4b003a618a1..9ec50729d535 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -79,6 +79,9 @@ static u8 transport_cb_idx = -1; static u8 config_cb_idx = -1; static int mpt_ids; +static u8 tm_tr_cb_idx = -1 ; +static u8 tm_sas_control_cb_idx = -1; + /* command line options */ static u32 logging_level; MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info " @@ -1641,17 +1644,18 @@ _scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code) * * The callback handler when using scsih_issue_tm. * - * Return nothing. + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. */ -static void +static u8 _scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) { MPI2DefaultReply_t *mpi_reply; if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED) - return; + return 1; if (ioc->tm_cmds.smid != smid) - return; + return 1; ioc->tm_cmds.status |= MPT2_CMD_COMPLETE; mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); if (mpi_reply) { @@ -1660,6 +1664,7 @@ _scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) } ioc->tm_cmds.status &= ~MPT2_CMD_PENDING; complete(&ioc->tm_cmds.done); + return 1; } /** @@ -2312,6 +2317,231 @@ _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc, } /** + * _scsih_tm_tr_send - send task management request + * @ioc: per adapter object + * @handle: device handle + * Context: interrupt time. + * + * This code is to initiate the device removal handshake protocal + * with controller firmware. This function will issue target reset + * using high priority request queue. It will send a sas iounit + * controll request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion. + * + * This is designed to send muliple task management request at the same + * time to the fifo. If the fifo is full, we will append the request, + * and process it in a future completion. + */ +static void +_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) +{ + Mpi2SCSITaskManagementRequest_t *mpi_request; + struct MPT2SAS_TARGET *sas_target_priv_data; + u16 smid; + struct _sas_device *sas_device; + unsigned long flags; + struct _tr_list *delayed_tr; + + if (ioc->shost_recovery) { + printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", + __func__, ioc->name); + return; + } + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + if (!sas_device) { + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + printk(MPT2SAS_ERR_FMT "%s: failed finding sas_device\n", + ioc->name, __func__); + return; + } + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + /* skip is hidden raid component */ + if (sas_device->hidden_raid_component) + return; + + smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx); + if (!smid) { + delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); + if (!delayed_tr) + return; + INIT_LIST_HEAD(&delayed_tr->list); + delayed_tr->handle = handle; + delayed_tr->state = MPT2SAS_REQ_SAS_CNTRL; + list_add_tail(&delayed_tr->list, + &ioc->delayed_tr_list); + if (sas_device->starget) + dewtprintk(ioc, starget_printk(KERN_INFO, + sas_device->starget, "DELAYED:tr:handle(0x%04x), " + "(open)\n", sas_device->handle)); + return; + } + + if (sas_device->starget && sas_device->starget->hostdata) { + sas_target_priv_data = sas_device->starget->hostdata; + sas_target_priv_data->tm_busy = 1; + dewtprintk(ioc, starget_printk(KERN_INFO, sas_device->starget, + "tr:handle(0x%04x), (open)\n", sas_device->handle)); + } + + mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); + memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t)); + mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; + mpi_request->DevHandle = cpu_to_le16(handle); + mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; + sas_device->state |= MPTSAS_STATE_TR_SEND; + sas_device->state |= MPT2SAS_REQ_SAS_CNTRL; + mpt2sas_base_put_smid_hi_priority(ioc, smid); +} + + + +/** + * _scsih_sas_control_complete - completion routine + * @ioc: per adapter object + * @smid: system request message index + * @msix_index: MSIX table index supplied by the OS + * @reply: reply message frame(lower 32bit addr) + * Context: interrupt time. + * + * This is the sas iounit controll completion routine. + * This code is part of the code to initiate the device removal + * handshake protocal with controller firmware. + * + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. + */ +static u8 +_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, + u8 msix_index, u32 reply) +{ + unsigned long flags; + u16 handle; + struct _sas_device *sas_device; + Mpi2SasIoUnitControlReply_t *mpi_reply = + mpt2sas_base_get_reply_virt_addr(ioc, reply); + + handle = le16_to_cpu(mpi_reply->DevHandle); + + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + if (!sas_device) { + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + printk(MPT2SAS_ERR_FMT "%s: failed finding sas_device\n", + ioc->name, __func__); + return 1; + } + sas_device->state |= MPTSAS_STATE_CNTRL_COMPLETE; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + if (sas_device->starget) + dewtprintk(ioc, starget_printk(KERN_INFO, sas_device->starget, + "sc_complete:handle(0x%04x), " + "ioc_status(0x%04x), loginfo(0x%08x)\n", + handle, le16_to_cpu(mpi_reply->IOCStatus), + le32_to_cpu(mpi_reply->IOCLogInfo))); + return 1; +} + +/** + * _scsih_tm_tr_complete - + * @ioc: per adapter object + * @smid: system request message index + * @msix_index: MSIX table index supplied by the OS + * @reply: reply message frame(lower 32bit addr) + * Context: interrupt time. + * + * This is the target reset completion routine. + * This code is part of the code to initiate the device removal + * handshake protocal with controller firmware. + * It will send a sas iounit controll request (MPI2_SAS_OP_REMOVE_DEVICE) + * + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. + */ +static u8 +_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, + u32 reply) +{ + unsigned long flags; + u16 handle; + struct _sas_device *sas_device; + Mpi2SCSITaskManagementReply_t *mpi_reply = + mpt2sas_base_get_reply_virt_addr(ioc, reply); + Mpi2SasIoUnitControlRequest_t *mpi_request; + u16 smid_sas_ctrl; + struct MPT2SAS_TARGET *sas_target_priv_data; + struct _tr_list *delayed_tr; + u8 rc; + + handle = le16_to_cpu(mpi_reply->DevHandle); + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + if (!sas_device) { + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + printk(MPT2SAS_ERR_FMT "%s: failed finding sas_device\n", + ioc->name, __func__); + return 1; + } + sas_device->state |= MPTSAS_STATE_TR_COMPLETE; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + + if (sas_device->starget) + dewtprintk(ioc, starget_printk(KERN_INFO, sas_device->starget, + "tr_complete:handle(0x%04x), (%s) ioc_status(0x%04x), " + "loginfo(0x%08x), completed(%d)\n", + sas_device->handle, (sas_device->state & + MPT2SAS_REQ_SAS_CNTRL) ? "open" : "active", + le16_to_cpu(mpi_reply->IOCStatus), + le32_to_cpu(mpi_reply->IOCLogInfo), + le32_to_cpu(mpi_reply->TerminationCount))); + + if (sas_device->starget && sas_device->starget->hostdata) { + sas_target_priv_data = sas_device->starget->hostdata; + sas_target_priv_data->tm_busy = 0; + } + + if (!list_empty(&ioc->delayed_tr_list)) { + delayed_tr = list_entry(ioc->delayed_tr_list.next, + struct _tr_list, list); + mpt2sas_base_free_smid(ioc, smid); + if (delayed_tr->state & MPT2SAS_REQ_SAS_CNTRL) + _scsih_tm_tr_send(ioc, delayed_tr->handle); + list_del(&delayed_tr->list); + kfree(delayed_tr); + rc = 0; /* tells base_interrupt not to free mf */ + } else + rc = 1; + + + if (!(sas_device->state & MPT2SAS_REQ_SAS_CNTRL)) + return rc; + + if (ioc->shost_recovery) { + printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", + __func__, ioc->name); + return rc; + } + + smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx); + if (!smid_sas_ctrl) { + printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", + ioc->name, __func__); + return rc; + } + + mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl); + memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t)); + mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; + mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE; + mpi_request->DevHandle = mpi_reply->DevHandle; + sas_device->state |= MPTSAS_STATE_CNTRL_SEND; + mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl); + return rc; +} + +/** * _scsih_check_topo_delete_events - sanity check on topo events * @ioc: per adapter object * @event_data: the event data payload @@ -2333,6 +2563,21 @@ _scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc, u16 expander_handle; struct _sas_node *sas_expander; unsigned long flags; + int i, reason_code; + u16 handle; + + for (i = 0 ; i < event_data->NumEntries; i++) { + if (event_data->PHY[i].PhyStatus & + MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) + continue; + handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle); + if (!handle) + continue; + reason_code = event_data->PHY[i].PhyStatus & + MPI2_EVENT_SAS_TOPO_RC_MASK; + if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING) + _scsih_tm_tr_send(ioc, handle); + } expander_handle = le16_to_cpu(event_data->ExpanderDevHandle); if (expander_handle < ioc->sas_hba.num_phys) { @@ -2915,11 +3160,12 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle) * @msix_index: MSIX table index supplied by the OS * @reply: reply message frame(lower 32bit addr) * - * Callback handler when using scsih_qcmd. + * Callback handler when using _scsih_qcmd. * - * Return nothing. + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. */ -static void +static u8 _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) { Mpi2SCSIIORequest_t *mpi_request; @@ -2936,7 +3182,7 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); scmd = _scsih_scsi_lookup_get(ioc, smid); if (scmd == NULL) - return; + return 1; mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); @@ -3092,6 +3338,7 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) out: scsi_dma_unmap(scmd); scmd->scsi_done(scmd); + return 1; } /** @@ -3623,6 +3870,12 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle) if (ioc->remove_host) goto out; + if ((sas_device->state & MPTSAS_STATE_TR_COMPLETE)) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "\tskip " + "target_reset handle(0x%04x)\n", ioc->name, handle)); + goto skip_tr; + } + /* Target Reset to flush out all the outstanding IO */ device_handle = (sas_device->hidden_raid_component) ? sas_device->volume_handle : handle; @@ -3639,6 +3892,13 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle) if (ioc->shost_recovery) goto out; } + skip_tr: + + if ((sas_device->state & MPTSAS_STATE_CNTRL_COMPLETE)) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "\tskip " + "sas_cntrl handle(0x%04x)\n", ioc->name, handle)); + goto out; + } /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */ dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle" @@ -4829,6 +5089,10 @@ _scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address, if (sas_device->sas_address == sas_address && sas_device->slot == slot && sas_device->starget) { sas_device->responding = 1; + sas_device->state = 0; + starget = sas_device->starget; + sas_target_priv_data = starget->hostdata; + sas_target_priv_data->tm_busy = 0; starget_printk(KERN_INFO, sas_device->starget, "handle(0x%04x), sas_addr(0x%016llx), enclosure " "logical id(0x%016llx), slot(%d)\n", handle, @@ -4841,8 +5105,6 @@ _scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address, printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n", sas_device->handle); sas_device->handle = handle; - starget = sas_device->starget; - sas_target_priv_data = starget->hostdata; sas_target_priv_data->handle = handle; goto out; } @@ -5235,9 +5497,10 @@ _firmware_event_work(struct work_struct *work) * This function merely adds a new work task into ioc->firmware_event_thread. * The tasks are worked from _firmware_event_work in user context. * - * Return nothing. + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. */ -void +u8 mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply) { @@ -5250,11 +5513,11 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, spin_lock_irqsave(&ioc->fw_event_lock, flags); if (ioc->fw_events_off || ioc->remove_host) { spin_unlock_irqrestore(&ioc->fw_event_lock, flags); - return; + return 1; } spin_unlock_irqrestore(&ioc->fw_event_lock, flags); - mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); + mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); event = le16_to_cpu(mpi_reply->Event); switch (event) { @@ -5268,7 +5531,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, if (baen_data->Primitive != MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT || ioc->broadcast_aen_busy) - return; + return 1; ioc->broadcast_aen_busy = 1; break; } @@ -5290,14 +5553,14 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, break; default: /* ignore the rest */ - return; + return 1; } fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); if (!fw_event) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); - return; + return 1; } fw_event->event_data = kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC); @@ -5305,7 +5568,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); kfree(fw_event); - return; + return 1; } memcpy(fw_event->event_data, mpi_reply->EventData, @@ -5315,6 +5578,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, fw_event->VP_ID = mpi_reply->VP_ID; fw_event->event = event; _scsih_fw_event_add(ioc, fw_event); + return 1; } /* shost template */ @@ -5574,7 +5838,7 @@ _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc) } /** - * _scsih_probe_sas - reporting raid volumes to sas transport + * _scsih_probe_sas - reporting sas devices to sas transport * @ioc: per adapter object * * Called during initial loading of the driver. @@ -5671,6 +5935,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) ioc->base_cb_idx = base_cb_idx; ioc->transport_cb_idx = transport_cb_idx; ioc->config_cb_idx = config_cb_idx; + ioc->tm_tr_cb_idx = tm_tr_cb_idx; + ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx; ioc->logging_level = logging_level; /* misc semaphores and spin locks */ spin_lock_init(&ioc->ioc_reset_in_progress_lock); @@ -5686,6 +5952,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) INIT_LIST_HEAD(&ioc->fw_event_list); INIT_LIST_HEAD(&ioc->raid_device_list); INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list); + INIT_LIST_HEAD(&ioc->delayed_tr_list); /* init shost parameters */ shost->max_cmd_len = 16; @@ -5702,6 +5969,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE3_PROTECTION); + scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); /* event thread */ snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name), @@ -5851,6 +6119,11 @@ _scsih_init(void) /* ctl module callback handler */ ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done); + tm_tr_cb_idx = mpt2sas_base_register_callback_handler( + _scsih_tm_tr_complete); + tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler( + _scsih_sas_control_complete); + mpt2sas_ctl_init(); error = pci_register_driver(&scsih_driver); @@ -5881,6 +6154,9 @@ _scsih_exit(void) mpt2sas_base_release_callback_handler(config_cb_idx); mpt2sas_base_release_callback_handler(ctl_cb_idx); + mpt2sas_base_release_callback_handler(tm_tr_cb_idx); + mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx); + mpt2sas_ctl_exit(); } |
