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| author | Stephen Cameron <stephenmcameron@gmail.com> | 2015-04-23 09:32:22 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-05-31 11:24:49 -0700 |
| commit | e985c58f5129d16793c5dfe17f7d381308a7a981 (patch) | |
| tree | e516212e01ea9f69bdfa3e52349845004b0bf850 /drivers/scsi | |
| parent | 9437ac43ed0536efb3ede6c034a0b6f36c19a693 (diff) | |
| download | lwn-e985c58f5129d16793c5dfe17f7d381308a7a981.tar.gz lwn-e985c58f5129d16793c5dfe17f7d381308a7a981.zip | |
hpsa: allow lockup detected to be viewed via sysfs
expose a detected lockup via sysfs
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Hannes Reinecke <hare@Suse.de>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/hpsa.c | 17 |
1 files changed, 17 insertions, 0 deletions
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, }; |