Similar to speed, duplex and dorment, report the testing status
in sysfs.
Signed-off-by: Andrew Lunn <[email protected]>
---
Documentation/ABI/testing/sysfs-class-net | 13 +++++++++++++
net/core/net-sysfs.c | 15 ++++++++++++++-
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-class-net
b/Documentation/ABI/testing/sysfs-class-net
index 664a8f6a634f..5e8b09743e04 100644
--- a/Documentation/ABI/testing/sysfs-class-net
+++ b/Documentation/ABI/testing/sysfs-class-net
@@ -124,6 +124,19 @@ Description:
authentication is performed (e.g: 802.1x). 'link_mode' attribute
will also reflect the dormant state.
+What: /sys/class/net/<iface>/testing
+Date: Jun 2019
+KernelVersion: 5.2
+Contact: [email protected]
+Description:
+ Indicates whether the interface is under test. Possible
+ values are:
+ 0: interface is not being tested
+ 1: interface is being tested
+
+ When an interface is under test, it cannot be expected
+ to pass packets as normal.
+
What: /sys/clas/net/<iface>/duplex
Date: October 2009
KernelVersion: 2.6.33
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 865ba6ca16eb..cab26358e347 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -243,6 +243,18 @@ static ssize_t duplex_show(struct device *dev,
}
static DEVICE_ATTR_RO(duplex);
+static ssize_t testing_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct net_device *netdev = to_net_dev(dev);
+
+ if (netif_running(netdev))
+ return sprintf(buf, fmt_dec, !!netif_testing(netdev));
+
+ return -EINVAL;
+}
+static DEVICE_ATTR_RO(testing);
+
static ssize_t dormant_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -260,7 +272,7 @@ static const char *const operstates[] = {
"notpresent", /* currently unused */
"down",
"lowerlayerdown",
- "testing", /* currently unused */
+ "testing",
"dormant",
"up"
};
@@ -524,6 +536,7 @@ static struct attribute *net_class_attrs[] __ro_after_init
= {
&dev_attr_speed.attr,
&dev_attr_duplex.attr,
&dev_attr_dormant.attr,
+ &dev_attr_testing.attr,
&dev_attr_operstate.attr,
&dev_attr_carrier_changes.attr,
&dev_attr_ifalias.attr,
--
2.20.1
