diff options
| author |   Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2019-05-07 10:05:43 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-18 19:46:20 -0400 |
| commit | a6024a9e9153d8ff2719724e20f401878e20891d (patch) | |
| tree | c2c68eb33d4625d0c0c34ddd83fc079821dbbb14 /drivers/scsi/megaraid/megaraid_sas_base.c | |
| parent | scsi: megaraid_sas: Print BAR information from driver (diff) | |
| download | linux-dev-a6024a9e9153d8ff2719724e20f401878e20891d.tar.xz linux-dev-a6024a9e9153d8ff2719724e20f401878e20891d.zip | |
scsi: megaraid_sas: Export RAID map id through sysfs
Add a sysfs interface to get the raid map index that is being used by
driver.
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_base.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 202d5ce60a2c..ed38cec35604 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -3274,6 +3274,18 @@ megasas_dump_system_regs_show(struct device *cdev, return megasas_dump_sys_regs(instance->reg_set, buf); } +static ssize_t +megasas_raid_map_id_show(struct device *cdev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct megasas_instance *instance = + (struct megasas_instance *)shost->hostdata; + + return snprintf(buf, PAGE_SIZE, "%ld\n", + (unsigned long)instance->map_id); +} + static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR, megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store); static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO, @@ -3288,6 +3300,8 @@ static DEVICE_ATTR(fw_cmds_outstanding, S_IRUGO, megasas_fw_cmds_outstanding_show, NULL); static DEVICE_ATTR(dump_system_regs, S_IRUGO, megasas_dump_system_regs_show, NULL); +static DEVICE_ATTR(raid_map_id, S_IRUGO, + megasas_raid_map_id_show, NULL); struct device_attribute *megaraid_host_attrs[] = { &dev_attr_fw_crash_buffer_size, @@ -3297,6 +3311,7 @@ struct device_attribute *megaraid_host_attrs[] = { &dev_attr_ldio_outstanding, &dev_attr_fw_cmds_outstanding, &dev_attr_dump_system_regs, + &dev_attr_raid_map_id, NULL, }; |