[SCSI] mpt2sas: Adding additional message to error escalation callback

Adding additional messages to the error escallation callbacks which
displays the wwid, sas address, handle, phy number, enclosure logical id,
and slot. In the same eh callbacks, routines, the printks were converted
to sdev_printks, which displays the bus target mapping.  These additional
modifications help better identify the device which is in recovery.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/mpt2sas/mpt2sas_scsih.c

@@ -2122,9 +2122,60 @@ mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
 	return rc;
 }
 
+/**
+ * _scsih_tm_display_info - displays info about the device
+ * @ioc: per adapter struct
+ * @scmd: pointer to scsi command object
+ *
+ * Called by task management callback handlers.
+ */
+static void
+_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
+{
+	struct scsi_target *starget = scmd->device->sdev_target;
+	struct MPT2SAS_TARGET *priv_target = starget->hostdata;
+	struct _sas_device *sas_device = NULL;
+	unsigned long flags;
+
+	if (!priv_target)
+		return;
+
+	scsi_print_command(scmd);
+	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
+		starget_printk(KERN_INFO, starget, "volume handle(0x%04x), "
+		    "volume wwid(0x%016llx)\n",
+		    priv_target->handle,
+		    (unsigned long long)priv_target->sas_address);
+	} else {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+		    priv_target->sas_address);
+		if (sas_device) {
+			if (priv_target->flags &
+			    MPT_TARGET_FLAGS_RAID_COMPONENT) {
+				starget_printk(KERN_INFO, starget,
+				    "volume handle(0x%04x), "
+				    "volume wwid(0x%016llx)\n",
+				    sas_device->volume_handle,
+				   (unsigned long long)sas_device->volume_wwid);
+			}
+			starget_printk(KERN_INFO, starget,
+			    "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
+			    sas_device->handle,
+			    (unsigned long long)sas_device->sas_address,
+			    sas_device->phy);
+			starget_printk(KERN_INFO, starget,
+			    "enclosure_logical_id(0x%016llx), slot(%d)\n",
+			   (unsigned long long)sas_device->enclosure_logical_id,
+			    sas_device->slot);
+		}
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	}
+}
+
 /**
  * _scsih_abort - eh threads main abort routine
- * @sdev: scsi device struct
+ * @scmd: pointer to scsi command object
  *
  * Returns SUCCESS if command aborted else FAILED
  */
@@ -2137,14 +2188,14 @@ _scsih_abort(struct scsi_cmnd *scmd)
 	u16 handle;
 	int r;
 
-	printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
-	    ioc->name, scmd);
-	scsi_print_command(scmd);
+	sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
+	    "scmd(%p)\n", scmd);
+	_scsih_tm_display_info(ioc, scmd);
 
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
-		printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
-		    ioc->name, scmd);
+		sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
+		    "scmd(%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
 		scmd->scsi_done(scmd);
 		r = SUCCESS;
@@ -2176,14 +2227,14 @@ _scsih_abort(struct scsi_cmnd *scmd)
 	    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, scmd);
 
  out:
-	printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
-	    ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
+	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
 	return r;
 }
 
 /**
  * _scsih_dev_reset - eh threads main device reset routine
- * @sdev: scsi device struct
+ * @scmd: pointer to scsi command object
  *
  * Returns SUCCESS if command aborted else FAILED
  */
@@ -2197,14 +2248,16 @@ _scsih_dev_reset(struct scsi_cmnd *scmd)
 	u16	handle;
 	int r;
 
-	printk(MPT2SAS_INFO_FMT "attempting device reset! scmd(%p)\n",
-	    ioc->name, scmd);
-	scsi_print_command(scmd);
+	struct scsi_target *starget = scmd->device->sdev_target;
+
+	starget_printk(KERN_INFO, starget, "attempting target reset! "
+	    "scmd(%p)\n", scmd);
+	_scsih_tm_display_info(ioc, scmd);
 
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
-		printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
-		    ioc->name, scmd);
+		starget_printk(KERN_INFO, starget, "target been deleted! "
+		    "scmd(%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
 		scmd->scsi_done(scmd);
 		r = SUCCESS;
@@ -2235,14 +2288,14 @@ _scsih_dev_reset(struct scsi_cmnd *scmd)
 	    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, scmd);
 
  out:
-	printk(MPT2SAS_INFO_FMT "device reset: %s scmd(%p)\n",
-	    ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
+	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
 	return r;
 }
 
 /**
  * _scsih_target_reset - eh threads main target reset routine
- * @sdev: scsi device struct
+ * @scmd: pointer to scsi command object
  *
  * Returns SUCCESS if command aborted else FAILED
  */
@@ -2255,15 +2308,16 @@ _scsih_target_reset(struct scsi_cmnd *scmd)
 	unsigned long flags;
 	u16	handle;
 	int r;
+	struct scsi_target *starget = scmd->device->sdev_target;
 
-	printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
-	    ioc->name, scmd);
-	scsi_print_command(scmd);
+	starget_printk(KERN_INFO, starget, "attempting target reset! "
+	    "scmd(%p)\n", scmd);
+	_scsih_tm_display_info(ioc, scmd);
 
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
-		printk(MPT2SAS_INFO_FMT "target been deleted! scmd(%p)\n",
-		    ioc->name, scmd);
+		starget_printk(KERN_INFO, starget, "target been deleted! "
+		    "scmd(%p)\n", scmd);
 		scmd->result = DID_NO_CONNECT << 16;
 		scmd->scsi_done(scmd);
 		r = SUCCESS;
@@ -2294,14 +2348,14 @@ _scsih_target_reset(struct scsi_cmnd *scmd)
 	    30, scmd);
 
  out:
-	printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
-	    ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+	starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
+	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
 	return r;
 }
 
 /**
  * _scsih_host_reset - eh threads main host reset routine
- * @sdev: scsi device struct
+ * @scmd: pointer to scsi command object
  *
  * Returns SUCCESS if command aborted else FAILED
  */
@@ -3425,6 +3479,11 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 	u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
 	struct _sas_device *sas_device = NULL;
 	unsigned long flags;
+	struct scsi_target *starget = scmd->device->sdev_target;
+	struct MPT2SAS_TARGET *priv_target = starget->hostdata;
+
+	if (!priv_target)
+		return;
 
 	if (log_info == 0x31170000)
 		return;
@@ -3541,22 +3600,28 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 
 	scsi_print_command(scmd);
 
-	spin_lock_irqsave(&ioc->sas_device_lock, flags);
-	sas_device = _scsih_sas_device_find_by_handle(ioc,
-	    le16_to_cpu(mpi_reply->DevHandle));
-	if (sas_device) {
-		printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), phy(%d)\n",
-		    ioc->name, sas_device->sas_address, sas_device->phy);
-		printk(MPT2SAS_WARN_FMT "\tenclosure_logical_id(0x%016llx), "
-		   "slot(%d)\n", ioc->name, sas_device->enclosure_logical_id,
-		    sas_device->slot);
+	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
+		printk(MPT2SAS_WARN_FMT "\tvolume wwid(0x%016llx)\n", ioc->name,
+		    (unsigned long long)priv_target->sas_address);
+	} else {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
+		    priv_target->sas_address);
+		if (sas_device) {
+			printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
+			    "phy(%d)\n", ioc->name, sas_device->sas_address,
+			    sas_device->phy);
+			printk(MPT2SAS_WARN_FMT
+			    "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
+			    ioc->name, sas_device->enclosure_logical_id,
+			    sas_device->slot);
+		}
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
 	}
-	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
 
-	printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
-	    "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
-	    le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
-		ioc_status, smid);
+	printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
+	    "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
+	    desc_ioc_state, ioc_status, smid);
 	printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
 	    "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
 	    scsi_get_resid(scmd));