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| author |   Deepak Ukey <deepak.ukey@microchip.com> | 2019-06-24 13:52:27 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-27 00:03:21 -0400 |
| commit | 2040a857e436e5e942d3d2d893891d088dba87f1 (patch) | |
| tree | 26e82962264850523d1bc90aacfde529e54737cf /drivers | |
| parent | scsi: mpt3sas: Fix msix load balance on and off settings (diff) | |
| download | linux-dev-2040a857e436e5e942d3d2d893891d088dba87f1.tar.xz linux-dev-2040a857e436e5e942d3d2d893891d088dba87f1.zip | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_ctl.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c index d193961ea82f..c7e0a42c3d0d 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.c +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -462,6 +462,24 @@ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, } 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 * @buf: the buffer returned @@ -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, |