author: Vineeth Vijayan <vneethv@linux.ibm.com> 2021-04-25 10:52:38 +0200
committer: Vasily Gorbik <gor@linux.ibm.com> 2021-08-18 10:01:27 +0200
commit: d3683c055212bf910d4e318f7944910ce10dbee6
parent: cec0c58d34f26a8ed7bf7ca8726608edbac7e958
Commit Summary:
Diffstat:
1 file changed, 16 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 7c54b629026b..0ce48a354e04 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -430,9 +430,26 @@ static ssize_t pimpampom_show(struct device *dev,
}
static DEVICE_ATTR_RO(pimpampom);
+static ssize_t dev_busid_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct subchannel *sch = to_subchannel(dev);
+ struct pmcw *pmcw = &sch->schib.pmcw;
+
+ if ((pmcw->st == SUBCHANNEL_TYPE_IO ||
+ pmcw->st == SUBCHANNEL_TYPE_MSG) && pmcw->dnv)
+ return sysfs_emit(buf, "0.%x.%04x\n", sch->schid.ssid,
+ pmcw->dev);
+ else
+ return sysfs_emit(buf, "none\n");
+}
+static DEVICE_ATTR_RO(dev_busid);
+
static struct attribute *io_subchannel_type_attrs[] = {
&dev_attr_chpids.attr,
&dev_attr_pimpampom.attr,
+ &dev_attr_dev_busid.attr,
NULL,
};
ATTRIBUTE_GROUPS(io_subchannel_type);