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Commit a9f93392 authored by Kevin Barnett's avatar Kevin Barnett Committed by Martin K. Petersen
Browse files

scsi: smartpqi: add raid level show 



Display the RAID level via sysfs

Reviewed-by: default avatarScott Benesh <scott.benesh@microsemi.com>
Signed-off-by: default avatarKevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: default avatarDon Brace <don.brace@microsemi.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 588a63fe

drivers/scsi/smartpqi/smartpqi_init.c

+29 −1
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ static char *pqi_raid_level_to_string(u8 raid_level) 
	if (raid_level < ARRAY_SIZE(raid_levels))

		return raid_levels[raid_level];



	return "";

	return "RAID UNKNOWN";

}



#define SA_RAID_0		0
@@ -5754,13 +5754,41 @@ static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, 
	return 2;

}



static ssize_t pqi_raid_level_show(struct device *dev,

	struct device_attribute *attr, char *buffer)

{

	struct pqi_ctrl_info *ctrl_info;

	struct scsi_device *sdev;

	struct pqi_scsi_dev *device;

	unsigned long flags;

	char *raid_level;



	sdev = to_scsi_device(dev);

	ctrl_info = shost_to_hba(sdev->host);



	spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);



	device = sdev->hostdata;



	if (pqi_is_logical_device(device))

		raid_level = pqi_raid_level_to_string(device->raid_level);

	else

		raid_level = "N/A";



	spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);



	return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level);

}



static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);

static DEVICE_ATTR(ssd_smart_path_enabled, 0444,

	pqi_ssd_smart_path_enabled_show, NULL);

static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);



static struct device_attribute *pqi_sdev_attrs[] = {

	&dev_attr_sas_address,

	&dev_attr_ssd_smart_path_enabled,

	&dev_attr_raid_level,

	NULL

};