Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a6024a9e authored by Shivasharan S's avatar Shivasharan S Committed by Martin K. Petersen
Browse files

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: default avatarSumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: default avatarShivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 9a598710

drivers/scsi/megaraid/megaraid_sas_base.c

+15 −0
Original line number Diff line number Diff line
@@ -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,

};