diff options
| author | Kashyap, Desai <kashyap.desai@lsi.com> | 2010-06-17 13:36:53 +0530 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-27 12:02:11 -0500 |
| commit | d32a8c15e1116e87f0105356eca1afb99842ab49 (patch) | |
| tree | 3795c1d0bd520021a21613ec063b557e51955cd0 /drivers/scsi/mpt2sas/mpt2sas_ctl.c | |
| parent | b8d7d7bb37b5e25ea740369eb12de5279fe6ab30 (diff) | |
[SCSI] mpt2sas: Added sysfs counter for ioc reset
Added a new sysfs shost attribute called ioc_reset_count. This will
keep count of host resets (both diagnostic and message unit).
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_ctl.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_ctl.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c index d88e9756d8f5..25c866e3e900 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c +++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c @@ -2581,6 +2581,29 @@ _ctl_fwfault_debug_store(struct device *cdev, static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR, _ctl_fwfault_debug_show, _ctl_fwfault_debug_store); + +/** + * _ctl_ioc_reset_count_show - ioc reset count + * @cdev - pointer to embedded class device + * @buf - the buffer returned + * + * This is firmware queue depth limit + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t +_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); + + return snprintf(buf, PAGE_SIZE, "%08d\n", ioc->ioc_reset_count); +} +static DEVICE_ATTR(ioc_reset_count, S_IRUGO, + _ctl_ioc_reset_count_show, NULL); + + struct device_attribute *mpt2sas_host_attrs[] = { &dev_attr_version_fw, &dev_attr_version_bios, @@ -2597,6 +2620,7 @@ struct device_attribute *mpt2sas_host_attrs[] = { &dev_attr_fwfault_debug, &dev_attr_fw_queue_depth, &dev_attr_host_sas_address, + &dev_attr_ioc_reset_count, NULL, }; |