From e985c58f5129d16793c5dfe17f7d381308a7a981 Mon Sep 17 00:00:00 2001 From: Stephen Cameron Date: Thu, 23 Apr 2015 09:32:22 -0500 Subject: [PATCH] hpsa: allow lockup detected to be viewed via sysfs expose a detected lockup via sysfs Reviewed-by: Scott Teel Reviewed-by: Kevin Barnett Reviewed-by: Tomas Henzl Reviewed-by: Hannes Reinecke Signed-off-by: Don Brace Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 0c4751c0d144..3a978d34190b 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -351,6 +351,20 @@ static int check_for_busy(struct ctlr_info *h, struct CommandList *c) return 1; } +static u32 lockup_detected(struct ctlr_info *h); +static ssize_t host_show_lockup_detected(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ld; + struct ctlr_info *h; + struct Scsi_Host *shost = class_to_shost(dev); + + h = shost_to_hba(shost); + ld = lockup_detected(h); + + return sprintf(buf, "ld=%d\n", ld); +} + static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -698,12 +712,15 @@ static DEVICE_ATTR(transport_mode, S_IRUGO, host_show_transport_mode, NULL); static DEVICE_ATTR(resettable, S_IRUGO, host_show_resettable, NULL); +static DEVICE_ATTR(lockup_detected, S_IRUGO, + host_show_lockup_detected, NULL); static struct device_attribute *hpsa_sdev_attrs[] = { &dev_attr_raid_level, &dev_attr_lunid, &dev_attr_unique_id, &dev_attr_hp_ssd_smart_path_enabled, + &dev_attr_lockup_detected, NULL, };