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scsi: pm80xx: Controller fatal error through sysfs

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Added support to check controller fatal error through sysfs.

Link: https://lore.kernel.org/r/20191114100910.6153-12-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Deepak Ukey 2019-11-14 15:39:08 +05:30 committed by Martin K. Petersen
parent 3e253d9657
commit e2773c67e2
1 changed files with 20 additions and 0 deletions
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20
drivers/scsi/pm8001/pm8001_ctl.c
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@ -69,6 +69,25 @@ static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
static
DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
/**
* controller_fatal_error_show - check controller is under fatal err
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read only' shost attribute.
*/
static ssize_t controller_fatal_error_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->controller_fatal_error);
}
static DEVICE_ATTR_RO(controller_fatal_error);
/**
* pm8001_ctl_fw_version_show - firmware version
* @cdev: pointer to embedded class device
@ -804,6 +823,7 @@ static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
pm8001_show_update_fw, pm8001_store_update_fw);
struct device_attribute *pm8001_host_attrs[] = {
&dev_attr_interface_rev,
&dev_attr_controller_fatal_error,
&dev_attr_fw_version,
&dev_attr_update_fw,
&dev_attr_aap_log,