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scsi: hpsa: add 'ctlr_num' sysfs attribute 

Add a sysfs attribute 'ctlr_num' holding the current HPSA controller
number. This is required to construct compability 'cciss' links.

[mkp: fixed typo]

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2016-11-18 08:32:49 +01:00 committed by Martin K. Petersen
parent 1ccde7004f
commit 16961204a0
1 changed files with 13 additions and 0 deletions
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13
drivers/scsi/hpsa.c
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@ -867,6 +867,16 @@ static ssize_t path_info_show(struct device *dev,
return output_len;
}
static ssize_t host_show_ctlr_num(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ctlr_info *h;
struct Scsi_Host *shost = class_to_shost(dev);
h = shost_to_hba(shost);
return snprintf(buf, 20, "%d\n", h->ctlr);
}
static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
@ -890,6 +900,8 @@ static DEVICE_ATTR(resettable, S_IRUGO,
host_show_resettable, NULL);
static DEVICE_ATTR(lockup_detected, S_IRUGO,
host_show_lockup_detected, NULL);
static DEVICE_ATTR(ctlr_num, S_IRUGO,
host_show_ctlr_num, NULL);
static struct device_attribute *hpsa_sdev_attrs[] = {
&dev_attr_raid_level,
@ -910,6 +922,7 @@ static struct device_attribute *hpsa_shost_attrs[] = {
&dev_attr_hp_ssd_smart_path_status,
&dev_attr_raid_offload_debug,
&dev_attr_lockup_detected,
&dev_attr_ctlr_num,
NULL,
};