1 files changed, 62 insertions, 0 deletions

diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c
index 17fd4cd888f9..ae1bc04b8653 100644
--- a/drivers/s390/net/qeth_l2_sys.c
+++ b/drivers/s390/net/qeth_l2_sys.c
@@ -119,9 +119,63 @@ static ssize_t qeth_bridge_port_state_show(struct device *dev,
 static DEVICE_ATTR(bridge_state, 0644, qeth_bridge_port_state_show,
                    NULL);
 
+static ssize_t qeth_bridgeport_hostnotification_show(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+        struct qeth_card *card = dev_get_drvdata(dev);
+        int enabled;
+
+        if (!card)
+                return -EINVAL;
+
+        mutex_lock(&card->conf_mutex);
+
+        enabled = card->options.sbp.hostnotification;
+
+        mutex_unlock(&card->conf_mutex);
+
+        return sprintf(buf, "%d\n", enabled);
+}
+
+static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev,
+                struct device_attribute *attr, const char *buf, size_t count)
+{
+        struct qeth_card *card = dev_get_drvdata(dev);
+        int rc = 0;
+        int enable;
+
+        if (!card)
+                return -EINVAL;
+
+        if (sysfs_streq(buf, "0"))
+                enable = 0;
+        else if (sysfs_streq(buf, "1"))
+                enable = 1;
+        else
+                return -EINVAL;
+
+        mutex_lock(&card->conf_mutex);
+
+        if (qeth_card_hw_is_reachable(card)) {
+                rc = qeth_bridgeport_an_set(card, enable);
+                if (!rc)
+                        card->options.sbp.hostnotification = enable;
+        } else
+                card->options.sbp.hostnotification = enable;
+
+        mutex_unlock(&card->conf_mutex);
+
+        return rc ? rc : count;
+}
+
+static DEVICE_ATTR(bridge_hostnotify, 0644,
+                        qeth_bridgeport_hostnotification_show,
+                        qeth_bridgeport_hostnotification_store);
+
 static struct attribute *qeth_l2_bridgeport_attrs[] = {
         &dev_attr_bridge_role.attr,
         &dev_attr_bridge_state.attr,
+        &dev_attr_bridge_hostnotify.attr,
         NULL,
 };
 
@@ -147,6 +201,8 @@ void qeth_l2_remove_device_attributes(struct device *dev)
  */
 void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
 {
+        int rc;
+
         if (!card)
                 return;
         if (!card->options.sbp.supported_funcs)
@@ -158,4 +214,10 @@ void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
                 qeth_bridgeport_query_ports(card,
                         &card->options.sbp.role, NULL);
         }
+        if (card->options.sbp.hostnotification) {
+                rc = qeth_bridgeport_an_set(card, 1);
+                if (rc)
+                        card->options.sbp.hostnotification = 0;
+        } else
+                qeth_bridgeport_an_set(card, 0);
 }