From 16961204a0ebcb87b89ed3be14b0a484c754d7e4 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 18 Nov 2016 08:32:49 +0100 Subject: [PATCH] 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 Acked-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/hpsa.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index b9f1bab4dfb7..216c137d96ea 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -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, }; -- 2.20.1