+static const char *
+swconfig_speed_str(enum switch_port_speed speed)
+{
+ switch (speed) {
+ case SWITCH_PORT_SPEED_10:
+ return "10baseT";
+ case SWITCH_PORT_SPEED_100:
+ return "100baseT";
+ case SWITCH_PORT_SPEED_1000:
+ return "1000baseT";
+ default:
+ break;
+ }
+
+ return "unknown";
+}
+
+static int
+swconfig_get_link(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
+{
+ struct switch_port_link link;
+ int len;
+ int ret;
+
+ if (val->port_vlan >= dev->ports)
+ return -EINVAL;
+
+ if (!dev->ops->get_port_link)
+ return -EOPNOTSUPP;
+
+ memset(&link, 0, sizeof(link));
+ ret = dev->ops->get_port_link(dev, val->port_vlan, &link);
+ if (ret)
+ return ret;
+
+ memset(dev->buf, 0, sizeof(dev->buf));
+
+ if (link.link)
+ len = snprintf(dev->buf, sizeof(dev->buf),
+ "port:%d link:up speed:%s %s-duplex %s%s%s",
+ val->port_vlan,
+ swconfig_speed_str(link.speed),
+ link.duplex ? "full" : "half",
+ link.tx_flow ? "txflow ": "",
+ link.rx_flow ? "rxflow " : "",
+ link.aneg ? "auto" : "");
+ else
+ len = snprintf(dev->buf, sizeof(dev->buf), "port:%d link:down",
+ val->port_vlan);
+
+ val->value.s = dev->buf;
+ val->len = len;
+
+ return 0;
+}
+