435 lines
13 KiB
C
435 lines
13 KiB
C
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/*
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* This module provides common API to set Diagnostic trigger for MPT
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* (Message Passing Technology) based controllers
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*
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* This code is based on drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
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* Copyright (C) 2012-2014 LSI Corporation
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* Copyright (C) 2013-2014 Avago Technologies
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* (mailto: MPT-FusionLinux.pdl@avagotech.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* NO WARRANTY
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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* solely responsible for determining the appropriateness of using and
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* distributing the Program and assumes all risks associated with its
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* exercise of rights under this Agreement, including but not limited to
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* the risks and costs of program errors, damage to or loss of data,
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* programs or equipment, and unavailability or interruption of operations.
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* DISCLAIMER OF LIABILITY
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/compat.h>
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#include <linux/poll.h>
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#include <linux/io.h>
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#include <linux/uaccess.h>
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#include "mpt3sas_base.h"
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/**
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* _mpt3sas_raise_sigio - notifiy app
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* @ioc: per adapter object
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* @event_data:
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*/
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static void
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_mpt3sas_raise_sigio(struct MPT3SAS_ADAPTER *ioc,
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struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
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{
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Mpi2EventNotificationReply_t *mpi_reply;
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u16 sz, event_data_sz;
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unsigned long flags;
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n",
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ioc->name, __func__));
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sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
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sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4;
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mpi_reply = kzalloc(sz, GFP_KERNEL);
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if (!mpi_reply)
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goto out;
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mpi_reply->Event = cpu_to_le16(MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED);
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event_data_sz = (sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4) / 4;
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mpi_reply->EventDataLength = cpu_to_le16(event_data_sz);
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memcpy(&mpi_reply->EventData, event_data,
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sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: add to driver event log\n",
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ioc->name, __func__));
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mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
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kfree(mpi_reply);
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out:
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/* clearing the diag_trigger_active flag */
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spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: clearing diag_trigger_active flag\n",
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ioc->name, __func__));
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ioc->diag_trigger_active = 0;
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
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__func__));
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}
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/**
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* mpt3sas_process_trigger_data - process the event data for the trigger
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* @ioc: per adapter object
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* @event_data:
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*/
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void
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mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
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struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
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{
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u8 issue_reset = 0;
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n",
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ioc->name, __func__));
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/* release the diag buffer trace */
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if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: release trace diag buffer\n", ioc->name, __func__));
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mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
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&issue_reset);
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}
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_mpt3sas_raise_sigio(ioc, event_data);
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
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__func__));
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}
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/**
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* mpt3sas_trigger_master - Master trigger handler
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* @ioc: per adapter object
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* @trigger_bitmask:
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*
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*/
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void
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mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc, u32 trigger_bitmask)
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{
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struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
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unsigned long flags;
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u8 found_match = 0;
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spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
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if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||
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trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
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goto by_pass_checks;
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/* check to see if trace buffers are currently registered */
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if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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return;
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}
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/* check to see if trace buffers are currently released */
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if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_RELEASED) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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return;
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}
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by_pass_checks:
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: enter - trigger_bitmask = 0x%08x\n",
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ioc->name, __func__, trigger_bitmask));
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/* don't send trigger if an trigger is currently active */
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if (ioc->diag_trigger_active) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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goto out;
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}
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/* check for the trigger condition */
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if (ioc->diag_trigger_master.MasterData & trigger_bitmask) {
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found_match = 1;
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ioc->diag_trigger_active = 1;
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: setting diag_trigger_active flag\n",
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ioc->name, __func__));
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}
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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if (!found_match)
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goto out;
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memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
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event_data.trigger_type = MPT3SAS_TRIGGER_MASTER;
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event_data.u.master.MasterData = trigger_bitmask;
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if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||
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trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
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_mpt3sas_raise_sigio(ioc, &event_data);
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else
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mpt3sas_send_trigger_data_event(ioc, &event_data);
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out:
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
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__func__));
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}
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/**
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* mpt3sas_trigger_event - Event trigger handler
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* @ioc: per adapter object
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* @event:
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* @log_entry_qualifier:
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*
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*/
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void
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mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,
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u16 log_entry_qualifier)
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{
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struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
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struct SL_WH_EVENT_TRIGGER_T *event_trigger;
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int i;
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unsigned long flags;
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u8 found_match;
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spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
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/* check to see if trace buffers are currently registered */
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if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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return;
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}
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/* check to see if trace buffers are currently released */
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if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_RELEASED) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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return;
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}
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: enter - event = 0x%04x, log_entry_qualifier = 0x%04x\n",
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ioc->name, __func__, event, log_entry_qualifier));
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/* don't send trigger if an trigger is currently active */
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if (ioc->diag_trigger_active) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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goto out;
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}
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/* check for the trigger condition */
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event_trigger = ioc->diag_trigger_event.EventTriggerEntry;
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for (i = 0 , found_match = 0; i < ioc->diag_trigger_event.ValidEntries
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&& !found_match; i++, event_trigger++) {
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if (event_trigger->EventValue != event)
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continue;
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if (event == MPI2_EVENT_LOG_ENTRY_ADDED) {
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if (event_trigger->LogEntryQualifier ==
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log_entry_qualifier)
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found_match = 1;
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continue;
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}
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found_match = 1;
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ioc->diag_trigger_active = 1;
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: setting diag_trigger_active flag\n",
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ioc->name, __func__));
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}
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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if (!found_match)
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goto out;
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: setting diag_trigger_active flag\n",
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ioc->name, __func__));
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memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
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event_data.trigger_type = MPT3SAS_TRIGGER_EVENT;
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event_data.u.event.EventValue = event;
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event_data.u.event.LogEntryQualifier = log_entry_qualifier;
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mpt3sas_send_trigger_data_event(ioc, &event_data);
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out:
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
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__func__));
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}
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/**
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* mpt3sas_trigger_scsi - SCSI trigger handler
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* @ioc: per adapter object
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* @sense_key:
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* @asc:
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* @ascq:
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*
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*/
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void
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mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key, u8 asc,
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u8 ascq)
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{
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struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
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struct SL_WH_SCSI_TRIGGER_T *scsi_trigger;
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int i;
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unsigned long flags;
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u8 found_match;
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spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
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/* check to see if trace buffers are currently registered */
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if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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return;
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}
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/* check to see if trace buffers are currently released */
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if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
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MPT3_DIAG_BUFFER_IS_RELEASED) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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return;
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}
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dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
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"%s: enter - sense_key = 0x%02x, asc = 0x%02x, ascq = 0x%02x\n",
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ioc->name, __func__, sense_key, asc, ascq));
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/* don't send trigger if an trigger is currently active */
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if (ioc->diag_trigger_active) {
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spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
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goto out;
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}
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/* check for the trigger condition */
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scsi_trigger = ioc->diag_trigger_scsi.SCSITriggerEntry;
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for (i = 0 , found_match = 0; i < ioc->diag_trigger_scsi.ValidEntries
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&& !found_match; i++, scsi_trigger++) {
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if (scsi_trigger->SenseKey != sense_key)
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continue;
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if (!(scsi_trigger->ASC == 0xFF || scsi_trigger->ASC == asc))
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continue;
|
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|
|
if (!(scsi_trigger->ASCQ == 0xFF || scsi_trigger->ASCQ == ascq))
|
||
|
|
continue;
|
||
|
|
found_match = 1;
|
||
|
|
ioc->diag_trigger_active = 1;
|
||
|
|
}
|
||
|
|
spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
|
||
|
|
|
||
|
|
if (!found_match)
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
|
||
|
|
"%s: setting diag_trigger_active flag\n",
|
||
|
|
ioc->name, __func__));
|
||
|
|
memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
|
||
|
|
event_data.trigger_type = MPT3SAS_TRIGGER_SCSI;
|
||
|
|
event_data.u.scsi.SenseKey = sense_key;
|
||
|
|
event_data.u.scsi.ASC = asc;
|
||
|
|
event_data.u.scsi.ASCQ = ascq;
|
||
|
|
mpt3sas_send_trigger_data_event(ioc, &event_data);
|
||
|
|
out:
|
||
|
|
dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
|
||
|
|
__func__));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* mpt3sas_trigger_mpi - MPI trigger handler
|
||
|
|
* @ioc: per adapter object
|
||
|
|
* @ioc_status:
|
||
|
|
* @loginfo:
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status, u32 loginfo)
|
||
|
|
{
|
||
|
|
struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
|
||
|
|
struct SL_WH_MPI_TRIGGER_T *mpi_trigger;
|
||
|
|
int i;
|
||
|
|
unsigned long flags;
|
||
|
|
u8 found_match;
|
||
|
|
|
||
|
|
spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
|
||
|
|
|
||
|
|
/* check to see if trace buffers are currently registered */
|
||
|
|
if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
|
||
|
|
MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
|
||
|
|
spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check to see if trace buffers are currently released */
|
||
|
|
if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
|
||
|
|
MPT3_DIAG_BUFFER_IS_RELEASED) {
|
||
|
|
spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
|
||
|
|
"%s: enter - ioc_status = 0x%04x, loginfo = 0x%08x\n",
|
||
|
|
ioc->name, __func__, ioc_status, loginfo));
|
||
|
|
|
||
|
|
/* don't send trigger if an trigger is currently active */
|
||
|
|
if (ioc->diag_trigger_active) {
|
||
|
|
spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check for the trigger condition */
|
||
|
|
mpi_trigger = ioc->diag_trigger_mpi.MPITriggerEntry;
|
||
|
|
for (i = 0 , found_match = 0; i < ioc->diag_trigger_mpi.ValidEntries
|
||
|
|
&& !found_match; i++, mpi_trigger++) {
|
||
|
|
if (mpi_trigger->IOCStatus != ioc_status)
|
||
|
|
continue;
|
||
|
|
if (!(mpi_trigger->IocLogInfo == 0xFFFFFFFF ||
|
||
|
|
mpi_trigger->IocLogInfo == loginfo))
|
||
|
|
continue;
|
||
|
|
found_match = 1;
|
||
|
|
ioc->diag_trigger_active = 1;
|
||
|
|
}
|
||
|
|
spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
|
||
|
|
|
||
|
|
if (!found_match)
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
|
||
|
|
"%s: setting diag_trigger_active flag\n",
|
||
|
|
ioc->name, __func__));
|
||
|
|
memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
|
||
|
|
event_data.trigger_type = MPT3SAS_TRIGGER_MPI;
|
||
|
|
event_data.u.mpi.IOCStatus = ioc_status;
|
||
|
|
event_data.u.mpi.IocLogInfo = loginfo;
|
||
|
|
mpt3sas_send_trigger_data_event(ioc, &event_data);
|
||
|
|
out:
|
||
|
|
dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
|
||
|
|
__func__));
|
||
|
|
}
|