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scsi: pm80xx: Event log size through sysfs 

Added support to read event log size from MPI configuration table and
export through sysfs.

Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Deepak Ukey 2019-06-24 13:52:27 +05:30 committed by Martin K. Petersen
parent eedc42a074
commit 2040a857e4
1 changed files with 19 additions and 0 deletions
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19
drivers/scsi/pm8001/pm8001_ctl.c
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@ -461,6 +461,24 @@ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
return str - buf;
}
static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
/**
* event_log_size_show - event log size
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs read shost attribute.
*/
static ssize_t event_log_size_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
return snprintf(buf, PAGE_SIZE, "%d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.event_log_size);
}
static DEVICE_ATTR_RO(event_log_size);
/**
* pm8001_ctl_aap_log_show - IOP event log
* @cdev: pointer to embedded class device
@ -796,6 +814,7 @@ struct device_attribute *pm8001_host_attrs[] = {
&dev_attr_max_sg_list,
&dev_attr_sas_spec_support,
&dev_attr_logging_level,
&dev_attr_event_log_size,
&dev_attr_host_sas_address,
&dev_attr_bios_version,
&dev_attr_ib_log,