swconfig: support receiving SWITCH_TYPE_LINK from kernel

When using cli, print link state the same way kernel used to do it.
This will allow kernel switching PORT_LINK from SWITCH_TYPE_STRING.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 47998

package/network/config/swconfig/src/cli.c

@@ -84,9 +84,27 @@ list_attributes(struct switch_dev *dev)
 	print_attrs(dev->port_ops);
 }
 
+static const char *
+speed_str(int speed)
+{
+	switch (speed) {
+	case 10:
+		return "10baseT";
+	case 100:
+		return "100baseT";
+	case 1000:
+		return "1000baseT";
+	default:
+		break;
+	}
+
+	return "unknown";
+}
+
 static void
 print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
 {
+	struct switch_port_link *link;
 	int i;
 
 	switch (attr->type) {
@@ -104,6 +122,21 @@ print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
 				 SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
 		}
 		break;
+	case SWITCH_TYPE_LINK:
+		link = val->value.link;
+		if (link->link)
+			printf("port:%d link:up speed:%s %s-duplex %s%s%s%s%s",
+				val->port_vlan,
+				speed_str(link->speed),
+				link->duplex ? "full" : "half",
+				link->tx_flow ? "txflow " : "",
+				link->rx_flow ? "rxflow " : "",
+				link->eee & SWLIB_LINK_FLAG_EEE_100BASET ? "eee100 " : "",
+				link->eee & SWLIB_LINK_FLAG_EEE_1000BASET ? "eee1000 " : "",
+				link->aneg ? "auto" : "");
+		else
+			printf("port:%d link:down", val->port_vlan);
+		break;
 	default:
 		printf("?unknown-type?");
 	}

package/network/config/swconfig/src/swlib.c

@@ -51,6 +51,15 @@ static struct nla_policy portmap_policy[SWITCH_PORTMAP_MAX] = {
 	[SWITCH_PORTMAP_VIRT] = { .type = NLA_U32 },
 };
 
+static struct nla_policy link_policy[SWITCH_LINK_ATTR_MAX] = {
+	[SWITCH_LINK_FLAG_LINK] = { .type = NLA_FLAG },
+	[SWITCH_LINK_FLAG_DUPLEX] = { .type = NLA_FLAG },
+	[SWITCH_LINK_FLAG_ANEG] = { .type = NLA_FLAG },
+	[SWITCH_LINK_SPEED] = { .type = NLA_U32 },
+	[SWITCH_LINK_FLAG_EEE_100BASET] = { .type = NLA_FLAG },
+	[SWITCH_LINK_FLAG_EEE_1000BASET] = { .type = NLA_FLAG },
+};
+
 static inline void *
 swlib_alloc(size_t size)
 {
@@ -201,6 +210,37 @@ out:
 	return err;
 }
 
+static int
+store_link_val(struct nl_msg *msg, struct nlattr *nla, struct switch_val *val)
+{
+	struct nlattr *tb[SWITCH_LINK_ATTR_MAX + 1];
+	struct switch_port_link *link;
+	int err = 0;
+
+	if (!val->value.link)
+		val->value.link = malloc(sizeof(struct switch_port_link));
+
+	err = nla_parse_nested(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy);
+	if (err < 0)
+		goto out;
+
+	link = val->value.link;
+	link->link = !!tb[SWITCH_LINK_FLAG_LINK];
+	link->duplex = !!tb[SWITCH_LINK_FLAG_DUPLEX];
+	link->aneg = !!tb[SWITCH_LINK_FLAG_ANEG];
+	link->tx_flow = !!tb[SWITCH_LINK_FLAG_TX_FLOW];
+	link->rx_flow = !!tb[SWITCH_LINK_FLAG_RX_FLOW];
+	link->speed = nla_get_u32(tb[SWITCH_LINK_SPEED]);
+	link->eee = 0;
+	if (tb[SWITCH_LINK_FLAG_EEE_100BASET])
+		link->eee |= SWLIB_LINK_FLAG_EEE_100BASET;
+	if (tb[SWITCH_LINK_FLAG_EEE_1000BASET])
+		link->eee |= SWLIB_LINK_FLAG_EEE_1000BASET;
+
+out:
+	return err;
+}
+
 static int
 store_val(struct nl_msg *msg, void *arg)
 {
@@ -221,6 +261,8 @@ store_val(struct nl_msg *msg, void *arg)
 		val->value.s = strdup(nla_get_string(tb[SWITCH_ATTR_OP_VALUE_STR]));
 	else if (tb[SWITCH_ATTR_OP_VALUE_PORTS])
 		val->err = store_port_val(msg, tb[SWITCH_ATTR_OP_VALUE_PORTS], val);
+	else if (tb[SWITCH_ATTR_OP_VALUE_LINK])
+		val->err = store_link_val(msg, tb[SWITCH_ATTR_OP_VALUE_LINK], val);
 
 	val->err = 0;
 	return 0;

package/network/config/swconfig/src/swlib.h

@@ -105,11 +105,16 @@ enum swlib_port_flags {
 	SWLIB_PORT_FLAG_TAGGED = (1 << 0),
 };
 
+enum swlib_link_flags {
+	SWLIB_LINK_FLAG_EEE_100BASET = (1 << 0),
+	SWLIB_LINK_FLAG_EEE_1000BASET = (1 << 1),
+};
 
 struct switch_dev;
 struct switch_attr;
 struct switch_port;
 struct switch_port_map;
+struct switch_port_link;
 struct switch_val;
 struct uci_package;
 
@@ -138,6 +143,7 @@ struct switch_val {
 		char *s;
 		int i;
 		struct switch_port *ports;
+		struct switch_port_link *link;
 	} value;
 };
 
@@ -161,6 +167,17 @@ struct switch_portmap {
 	char *segment;
 };
 
+struct switch_port_link {
+	int link:1;
+	int duplex:1;
+	int aneg:1;
+	int tx_flow:1;
+	int rx_flow:1;
+	int speed;
+	/* in ethtool adv_t format */
+	uint32_t eee;
+};
+
 /**
  * swlib_list: list all switches
  */