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Commit ded1be4a authored by Joseph T Handzik's avatar Joseph T Handzik Committed by Martin K. Petersen
Browse files

hpsa: add sas_address to sysfs device attibute 



There have been companies requesting a sysfs entry
to obtain the sas address of device.

Reviewed-by: default avatarScott Teel <scott.teel@microsemi.com>
Reviewed-by: default avatarKevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: default avatarDon Brace <don.brace@microsemi.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent cf477237

drivers/scsi/hpsa.c

+25 −0
Original line number Original line Diff line number Diff line
@@ -728,6 +728,29 @@ static ssize_t unique_id_show(struct device *dev, 
			sn[12], sn[13], sn[14], sn[15]);

			sn[12], sn[13], sn[14], sn[15]);

}

}





static ssize_t sas_address_show(struct device *dev,

	      struct device_attribute *attr, char *buf)

{

	struct ctlr_info *h;

	struct scsi_device *sdev;

	struct hpsa_scsi_dev_t *hdev;

	unsigned long flags;

	u64 sas_address;



	sdev = to_scsi_device(dev);

	h = sdev_to_hba(sdev);

	spin_lock_irqsave(&h->lock, flags);

	hdev = sdev->hostdata;

	if (!hdev || is_logical_device(hdev) || !hdev->expose_device) {

		spin_unlock_irqrestore(&h->lock, flags);

		return -ENODEV;

	}

	sas_address = hdev->sas_address;

	spin_unlock_irqrestore(&h->lock, flags);



	return snprintf(buf, PAGE_SIZE, "0x%016llx\n", sas_address);

}



static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev,

static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev,

	     struct device_attribute *attr, char *buf)

	     struct device_attribute *attr, char *buf)

{

{
@@ -840,6 +863,7 @@ static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); 
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);

static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);

static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);

static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);

static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);

static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);

static DEVICE_ATTR(sas_address, S_IRUGO, sas_address_show, NULL);

static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,

static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO,

			host_show_hp_ssd_smart_path_enabled, NULL);

			host_show_hp_ssd_smart_path_enabled, NULL);

static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL);

static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL);
@@ -865,6 +889,7 @@ static struct device_attribute *hpsa_sdev_attrs[] = { 
	&dev_attr_unique_id,

	&dev_attr_unique_id,

	&dev_attr_hp_ssd_smart_path_enabled,

	&dev_attr_hp_ssd_smart_path_enabled,

	&dev_attr_path_info,

	&dev_attr_path_info,

	&dev_attr_sas_address,

	NULL,

	NULL,

};

};