scsi: mpi3mr: Trigger support

Add functions to process automatic diag triggers. If a condition defined in
the triggers is met, the driver will call appropriate controller functions
to save the diagnostic information.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405151955.BiAWI1SY-lkp@intel.com/
Co-developed-by: Sathya Prakash <sathya.prakash@broadcom.com>
Signed-off-by: Sathya Prakash <sathya.prakash@broadcom.com>
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20240626102646.14298-3-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 113 insertions, 0 deletions

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index bce639a6cca1..eac179dc9370 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -242,6 +242,40 @@ static void mpi3mr_fwevt_add_to_list(struct mpi3mr_ioc *mrioc,
 }
 
 /**
+ * mpi3mr_hdb_trigger_data_event - Add hdb trigger data event to
+ * the list
+ * @mrioc: Adapter instance reference
+ * @event_data: Event data
+ *
+ * Add the given hdb trigger data event to the firmware event
+ * list.
+ *
+ * Return: Nothing.
+ */
+void mpi3mr_hdb_trigger_data_event(struct mpi3mr_ioc *mrioc,
+	struct trigger_event_data *event_data)
+{
+	struct mpi3mr_fwevt *fwevt;
+	u16 sz = sizeof(*event_data);
+
+	fwevt = mpi3mr_alloc_fwevt(sz);
+	if (!fwevt) {
+		ioc_warn(mrioc, "failed to queue hdb trigger data event\n");
+		return;
+	}
+
+	fwevt->mrioc = mrioc;
+	fwevt->event_id = MPI3MR_DRIVER_EVENT_PROCESS_TRIGGER;
+	fwevt->send_ack = 0;
+	fwevt->process_evt = 1;
+	fwevt->evt_ctx = 0;
+	fwevt->event_data_size = sz;
+	memcpy(fwevt->event_data, event_data, sz);
+
+	mpi3mr_fwevt_add_to_list(mrioc, fwevt);
+}
+
+/**
  * mpi3mr_fwevt_del_from_list - Delete firmware event from list
  * @mrioc: Adapter instance reference
  * @fwevt: Firmware event reference
@@ -898,6 +932,8 @@ void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
 		}
 	} else
 		mpi3mr_remove_tgtdev_from_sas_transport(mrioc, tgtdev);
+	mpi3mr_global_trigger(mrioc,
+	    MPI3_DRIVER2_GLOBALTRIGGER_DEVICE_REMOVAL_ENABLED);
 
 	ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n",
 	    __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
@@ -1434,6 +1470,62 @@ out:
 }
 
 /**
+ * mpi3mr_process_trigger_data_event_bh - Process trigger event
+ * data
+ * @mrioc: Adapter instance reference
+ * @event_data: Event data
+ *
+ * This function releases diage buffers or issues diag fault
+ * based on trigger conditions
+ *
+ * Return: Nothing
+ */
+static void mpi3mr_process_trigger_data_event_bh(struct mpi3mr_ioc *mrioc,
+	struct trigger_event_data *event_data)
+{
+	struct diag_buffer_desc *trace_hdb = event_data->trace_hdb;
+	struct diag_buffer_desc *fw_hdb = event_data->fw_hdb;
+	unsigned long flags;
+	int retval = 0;
+	u8 trigger_type = event_data->trigger_type;
+	union mpi3mr_trigger_data *trigger_data =
+		&event_data->trigger_specific_data;
+
+	if (event_data->snapdump)  {
+		if (trace_hdb)
+			mpi3mr_set_trigger_data_in_hdb(trace_hdb, trigger_type,
+			    trigger_data, 1);
+		if (fw_hdb)
+			mpi3mr_set_trigger_data_in_hdb(fw_hdb, trigger_type,
+			    trigger_data, 1);
+		mpi3mr_soft_reset_handler(mrioc,
+			    MPI3MR_RESET_FROM_TRIGGER, 1);
+		return;
+	}
+
+	if (trace_hdb) {
+		retval = mpi3mr_issue_diag_buf_release(mrioc, trace_hdb);
+		if (!retval) {
+			mpi3mr_set_trigger_data_in_hdb(trace_hdb, trigger_type,
+			    trigger_data, 1);
+		}
+		spin_lock_irqsave(&mrioc->trigger_lock, flags);
+		mrioc->trace_release_trigger_active = false;
+		spin_unlock_irqrestore(&mrioc->trigger_lock, flags);
+	}
+	if (fw_hdb) {
+		retval = mpi3mr_issue_diag_buf_release(mrioc, fw_hdb);
+		if (!retval) {
+			mpi3mr_set_trigger_data_in_hdb(fw_hdb, trigger_type,
+		    trigger_data, 1);
+		}
+		spin_lock_irqsave(&mrioc->trigger_lock, flags);
+		mrioc->fw_release_trigger_active = false;
+		spin_unlock_irqrestore(&mrioc->trigger_lock, flags);
+	}
+}
+
+/**
  * mpi3mr_encldev_add_chg_evt_debug - debug for enclosure event
  * @mrioc: Adapter instance reference
  * @encl_pg0: Enclosure page 0.
@@ -2019,6 +2111,12 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
 		    "scan for non responding and newly added devices after soft reset completed\n");
 		break;
 	}
+	case MPI3MR_DRIVER_EVENT_PROCESS_TRIGGER:
+	{
+		mpi3mr_process_trigger_data_event_bh(mrioc,
+		    (struct trigger_event_data *)fwevt->event_data);
+		break;
+	}
 	default:
 		break;
 	}
@@ -2857,6 +2955,7 @@ void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc,
 		ack_req = 1;
 
 	evt_type = event_reply->event;
+	mpi3mr_event_trigger(mrioc, event_reply->event);
 
 	switch (evt_type) {
 	case MPI3_EVENT_DEVICE_ADDED:
@@ -2895,6 +2994,11 @@ void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc,
 		ack_req = 0;
 		break;
 	}
+	case MPI3_EVENT_DIAGNOSTIC_BUFFER_STATUS_CHANGE:
+	{
+		mpi3mr_hdbstatuschg_evt_th(mrioc, event_reply);
+		break;
+	}
 	case MPI3_EVENT_DEVICE_INFO_CHANGED:
 	case MPI3_EVENT_LOG_DATA:
 	case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
@@ -3158,6 +3262,7 @@ void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc,
 		    MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL)
 			ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info);
 		ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK;
+		mpi3mr_reply_trigger(mrioc, ioc_status, ioc_loginfo);
 		break;
 	case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY:
 		addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc;
@@ -3186,6 +3291,12 @@ void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc,
 		ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK;
 		if (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY)
 			panic("%s: Ran out of sense buffers\n", mrioc->name);
+		if (sense_buf) {
+			scsi_normalize_sense(sense_buf, sense_count, &sshdr);
+			mpi3mr_scsisense_trigger(mrioc, sshdr.sense_key,
+			    sshdr.asc, sshdr.ascq);
+		}
+		mpi3mr_reply_trigger(mrioc, ioc_status, ioc_loginfo);
 		break;
 	case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS:
 		success_desc = (struct mpi3_success_reply_descriptor *)reply_desc;
@@ -3811,6 +3922,8 @@ int mpi3mr_issue_tm(struct mpi3mr_ioc *mrioc, u8 tm_type,
 	default:
 		break;
 	}
+	mpi3mr_global_trigger(mrioc,
+	    MPI3_DRIVER2_GLOBALTRIGGER_TASK_MANAGEMENT_ENABLED);
 
 out_unlock:
 	drv_cmd->state = MPI3MR_CMD_NOTUSED;