]> git.karo-electronics.de Git - linux-beck.git/commitdiff
[SCSI] mpt fusion: Added support for Broadcast primitives Event handling
authorKashyap, Desai <kashyap.desai@lsi.com>
Fri, 29 May 2009 11:26:59 +0000 (16:56 +0530)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Tue, 9 Jun 2009 22:45:10 +0000 (17:45 -0500)
Firmware is able to handle Broadcast primitives, but upstream driver does not
have support for broadcast primitive handling. Now this patch is mainly to
support broadcast primitives.

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
drivers/message/fusion/mptbase.h
drivers/message/fusion/mptsas.c
drivers/message/fusion/mptscsih.c
drivers/message/fusion/mptscsih.h

index 4f3d4c34bcd8427c1585986c8a157a3ad61d4961..1c8514dc31ca3ec51df54ca2a9711f6fb085b02f 100644 (file)
@@ -758,6 +758,7 @@ typedef struct _MPT_ADAPTER
        struct scsi_cmnd        **ScsiLookup;
        spinlock_t                scsi_lookup_lock;
        u64                     dma_mask;
+       u32                       broadcast_aen_busy;
        char                     reset_work_q_name[MPT_KOBJ_NAME_LEN];
        struct workqueue_struct *reset_work_q;
        struct delayed_work      fault_reset_work;
index 10a12d846e85cc9ac800ab393d73f7f0f25b8fbc..88a1a6d3bc045d61a8170132a1c74569b0b367c7 100644 (file)
@@ -121,6 +121,7 @@ static void mptsas_expander_delete(MPT_ADAPTER *ioc,
 static void mptsas_send_expander_event(struct fw_event_work *fw_event);
 static void mptsas_not_responding_devices(MPT_ADAPTER *ioc);
 static void mptsas_scan_sas_topology(MPT_ADAPTER *ioc);
+static void mptsas_broadcast_primative_work(struct fw_event_work *fw_event);
 static void mptsas_handle_queue_full_event(struct fw_event_work *fw_event);
 static void mptsas_volume_delete(MPT_ADAPTER *ioc, u8 id);
 
@@ -287,6 +288,21 @@ mptsas_add_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
        spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
 }
 
+/* requeue a sas firmware event */
+static void
+mptsas_requeue_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
+    unsigned long delay)
+{
+       unsigned long flags;
+       spin_lock_irqsave(&ioc->fw_event_lock, flags);
+       devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: reschedule task "
+           "(fw_event=0x%p)\n", ioc->name, __func__, fw_event));
+       fw_event->retries++;
+       queue_delayed_work(ioc->fw_event_q, &fw_event->work,
+           msecs_to_jiffies(delay));
+       spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+}
+
 /* free memory assoicated to a sas firmware event */
 static void
 mptsas_free_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event)
@@ -1606,6 +1622,9 @@ mptsas_firmware_event_work(struct work_struct *work)
                    MPI_SAS_OP_CLEAR_NOT_PRESENT);
                mptsas_free_fw_event(ioc, fw_event);
                break;
+       case MPI_EVENT_SAS_BROADCAST_PRIMITIVE:
+               mptsas_broadcast_primative_work(fw_event);
+               break;
        case MPI_EVENT_SAS_EXPANDER_STATUS_CHANGE:
                mptsas_send_expander_event(fw_event);
                break;
@@ -4325,6 +4344,182 @@ mptsas_send_raid_event(struct fw_event_work *fw_event)
                mptsas_free_fw_event(ioc, fw_event);
 }
 
+/**
+ *     mptsas_issue_tm - send mptsas internal tm request
+ *     @ioc: Pointer to MPT_ADAPTER structure
+ *     @type: Task Management type
+ *     @channel: channel number for task management
+ *     @id: Logical Target ID for reset (if appropriate)
+ *     @lun: Logical unit for reset (if appropriate)
+ *     @task_context: Context for the task to be aborted
+ *     @timeout: timeout for task management control
+ *
+ *     return 0 on success and -1 on failure:
+ *
+ */
+static int
+mptsas_issue_tm(MPT_ADAPTER *ioc, u8 type, u8 channel, u8 id, u64 lun,
+       int task_context, ulong timeout, u8 *issue_reset)
+{
+       MPT_FRAME_HDR   *mf;
+       SCSITaskMgmt_t  *pScsiTm;
+       int              retval;
+       unsigned long    timeleft;
+
+       *issue_reset = 0;
+       mf = mpt_get_msg_frame(mptsasDeviceResetCtx, ioc);
+       if (mf == NULL) {
+               retval = -1; /* return failure */
+               dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "TaskMgmt request: no "
+                   "msg frames!!\n", ioc->name));
+               goto out;
+       }
+
+       dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request: mr = %p, "
+           "task_type = 0x%02X,\n\t timeout = %ld, fw_channel = %d, "
+           "fw_id = %d, lun = %lld,\n\t task_context = 0x%x\n", ioc->name, mf,
+            type, timeout, channel, id, (unsigned long long)lun,
+            task_context));
+
+       pScsiTm = (SCSITaskMgmt_t *) mf;
+       memset(pScsiTm, 0, sizeof(SCSITaskMgmt_t));
+       pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
+       pScsiTm->TaskType = type;
+       pScsiTm->MsgFlags = 0;
+       pScsiTm->TargetID = id;
+       pScsiTm->Bus = channel;
+       pScsiTm->ChainOffset = 0;
+       pScsiTm->Reserved = 0;
+       pScsiTm->Reserved1 = 0;
+       pScsiTm->TaskMsgContext = task_context;
+       int_to_scsilun(lun, (struct scsi_lun *)pScsiTm->LUN);
+
+       INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
+       CLEAR_MGMT_STATUS(ioc->internal_cmds.status)
+       retval = 0;
+       mpt_put_msg_frame_hi_pri(mptsasDeviceResetCtx, ioc, mf);
+
+       /* Now wait for the command to complete */
+       timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done,
+           timeout*HZ);
+       if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
+               retval = -1; /* return failure */
+               dtmprintk(ioc, printk(MYIOC_s_ERR_FMT
+                   "TaskMgmt request: TIMED OUT!(mr=%p)\n", ioc->name, mf));
+               mpt_free_msg_frame(ioc, mf);
+               if (ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET)
+                       goto out;
+               *issue_reset = 1;
+               goto out;
+       }
+
+       if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
+               retval = -1; /* return failure */
+               dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+                   "TaskMgmt request: failed with no reply\n", ioc->name));
+               goto out;
+       }
+
+ out:
+       CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
+       return retval;
+}
+
+/**
+ *     mptsas_broadcast_primative_work - Handle broadcast primitives
+ *     @work: work queue payload containing info describing the event
+ *
+ *     this will be handled in workqueue context.
+ */
+static void
+mptsas_broadcast_primative_work(struct fw_event_work *fw_event)
+{
+       MPT_ADAPTER *ioc = fw_event->ioc;
+       MPT_FRAME_HDR   *mf;
+       VirtDevice      *vdevice;
+       int                     ii;
+       struct scsi_cmnd        *sc;
+       SCSITaskMgmtReply_t     *pScsiTmReply;
+       u8                      issue_reset;
+       int                     task_context;
+       u8                      channel, id;
+       int                      lun;
+       u32                      termination_count;
+       u32                      query_count;
+
+       dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+           "%s - enter\n", ioc->name, __func__));
+
+       mutex_lock(&ioc->taskmgmt_cmds.mutex);
+       if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
+               mutex_unlock(&ioc->taskmgmt_cmds.mutex);
+               mptsas_requeue_fw_event(ioc, fw_event, 1000);
+               return;
+       }
+
+       issue_reset = 0;
+       termination_count = 0;
+       query_count = 0;
+       mpt_findImVolumes(ioc);
+       pScsiTmReply = (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply;
+
+       for (ii = 0; ii < ioc->req_depth; ii++) {
+               if (ioc->fw_events_off)
+                       goto out;
+               sc = mptscsih_get_scsi_lookup(ioc, ii);
+               if (!sc)
+                       continue;
+               mf = MPT_INDEX_2_MFPTR(ioc, ii);
+               if (!mf)
+                       continue;
+               task_context = mf->u.frame.hwhdr.msgctxu.MsgContext;
+               vdevice = sc->device->hostdata;
+               if (!vdevice || !vdevice->vtarget)
+                       continue;
+               if (vdevice->vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
+                       continue; /* skip hidden raid components */
+               if (vdevice->vtarget->raidVolume)
+                       continue; /* skip hidden raid components */
+               channel = vdevice->vtarget->channel;
+               id = vdevice->vtarget->id;
+               lun = vdevice->lun;
+               if (mptsas_issue_tm(ioc, MPI_SCSITASKMGMT_TASKTYPE_QUERY_TASK,
+                   channel, id, (u64)lun, task_context, 30, &issue_reset))
+                       goto out;
+               query_count++;
+               termination_count +=
+                   le32_to_cpu(pScsiTmReply->TerminationCount);
+               if ((pScsiTmReply->IOCStatus == MPI_IOCSTATUS_SUCCESS) &&
+                   (pScsiTmReply->ResponseCode ==
+                   MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
+                   pScsiTmReply->ResponseCode ==
+                   MPI_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
+                       continue;
+               if (mptsas_issue_tm(ioc,
+                   MPI_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET,
+                   channel, id, (u64)lun, 0, 30, &issue_reset))
+                       goto out;
+               termination_count +=
+                   le32_to_cpu(pScsiTmReply->TerminationCount);
+       }
+
+ out:
+       dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+           "%s - exit, query_count = %d termination_count = %d\n",
+           ioc->name, __func__, query_count, termination_count));
+
+       ioc->broadcast_aen_busy = 0;
+       mpt_clear_taskmgmt_in_progress_flag(ioc);
+       mutex_unlock(&ioc->taskmgmt_cmds.mutex);
+
+       if (issue_reset) {
+               printk(MYIOC_s_WARN_FMT "Issuing Reset from %s!!\n",
+                   ioc->name, __func__);
+               mpt_HardResetHandler(ioc, CAN_SLEEP);
+       }
+       mptsas_free_fw_event(ioc, fw_event);
+}
+
 /*
  * mptsas_send_ir2_event - handle exposing hidden disk when
  * an inactive raid volume is added
@@ -4388,6 +4583,18 @@ mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply)
 
        delay = msecs_to_jiffies(1);
        switch (event) {
+       case MPI_EVENT_SAS_BROADCAST_PRIMITIVE:
+       {
+               EVENT_DATA_SAS_BROADCAST_PRIMITIVE *broadcast_event_data =
+                   (EVENT_DATA_SAS_BROADCAST_PRIMITIVE *)reply->Data;
+               if (broadcast_event_data->Primitive !=
+                   MPI_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
+                       return 0;
+               if (ioc->broadcast_aen_busy)
+                       return 0;
+               ioc->broadcast_aen_busy = 1;
+               break;
+       }
        case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
        {
                EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data =
index cf1aba18a09fc349411d0637db4a3d5c44d53d13..96681203d4a960475f53501f994e740f6792c8e4 100644 (file)
@@ -80,6 +80,7 @@ MODULE_VERSION(my_VERSION);
 /*
  *  Other private/forward protos...
  */
+struct scsi_cmnd       *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
 static struct scsi_cmnd * mptscsih_getclear_scsi_lookup(MPT_ADAPTER *ioc, int i);
 static void    mptscsih_set_scsi_lookup(MPT_ADAPTER *ioc, int i, struct scsi_cmnd *scmd);
 static int     SCPNT_TO_LOOKUP_IDX(MPT_ADAPTER *ioc, struct scsi_cmnd *scmd);
@@ -2419,6 +2420,26 @@ mptscsih_copy_sense_data(struct scsi_cmnd *sc, MPT_SCSI_HOST *hd, MPT_FRAME_HDR
        }
 }
 
+/**
+ * mptscsih_get_scsi_lookup - retrieves scmd entry
+ * @ioc: Pointer to MPT_ADAPTER structure
+ * @i: index into the array
+ *
+ * Returns the scsi_cmd pointer
+ */
+struct scsi_cmnd *
+mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i)
+{
+       unsigned long   flags;
+       struct scsi_cmnd *scmd;
+
+       spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+       scmd = ioc->ScsiLookup[i];
+       spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+       return scmd;
+}
+EXPORT_SYMBOL(mptscsih_get_scsi_lookup);
 
 /**
  * mptscsih_getclear_scsi_lookup
index 572739565f6af5418db62a03e3fca753dfdc5c0e..eb3f677528ac703b1dac56f6795441fc155108df 100644 (file)
@@ -133,4 +133,5 @@ extern void mptscsih_timer_expired(unsigned long data);
 extern u8 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id);
 extern int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id);
 extern struct device_attribute *mptscsih_host_attrs[];
+extern struct scsi_cmnd        *mptscsih_get_scsi_lookup(MPT_ADAPTER *ioc, int i);
 extern void mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);