- ln = 0;
- while (fgets(line, sizeof line, stream)) {
- if (++ln >= 3) {
- char devname[16];
-#define X64 "%"SCNu64
- if (sscanf(line,
- " %15[^:]:"
- X64 X64 X64 X64 X64 X64 X64 "%*u"
- X64 X64 X64 X64 X64 X64 X64 "%*u",
- devname,
- &stats->rx_bytes,
- &stats->rx_packets,
- &stats->rx_errors,
- &stats->rx_dropped,
- &stats->rx_fifo_errors,
- &stats->rx_frame_errors,
- &stats->multicast,
- &stats->tx_bytes,
- &stats->tx_packets,
- &stats->tx_errors,
- &stats->tx_dropped,
- &stats->tx_fifo_errors,
- &stats->collisions,
- &stats->tx_carrier_errors) != 15) {
- VLOG_WARN_RL(&rl, "%s:%d: parse error", fn, ln);
- } else if (!strcmp(devname, netdev_name)) {
- stats->rx_length_errors = UINT64_MAX;
- stats->rx_over_errors = UINT64_MAX;
- stats->rx_crc_errors = UINT64_MAX;
- stats->rx_missed_errors = UINT64_MAX;
- stats->tx_aborted_errors = UINT64_MAX;
- stats->tx_heartbeat_errors = UINT64_MAX;
- stats->tx_window_errors = UINT64_MAX;
- fclose(stream);
- return 0;
- }
+/* Attempts to change the stats for 'netdev' to those provided in 'stats'.
+ * Returns 0 if successful, otherwise a positive errno value.
+ *
+ * This will probably fail for most network devices. Some devices might only
+ * allow setting their stats to 0. */
+int
+netdev_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
+{
+ return (netdev_get_dev(netdev)->netdev_class->set_stats
+ ? netdev_get_dev(netdev)->netdev_class->set_stats(netdev, stats)
+ : EOPNOTSUPP);
+}
+
+/* Attempts to set input rate limiting (policing) policy, such that up to
+ * 'kbits_rate' kbps of traffic is accepted, with a maximum accumulative burst
+ * size of 'kbits' kb. */
+int
+netdev_set_policing(struct netdev *netdev, uint32_t kbits_rate,
+ uint32_t kbits_burst)
+{
+ return (netdev_get_dev(netdev)->netdev_class->set_policing
+ ? netdev_get_dev(netdev)->netdev_class->set_policing(netdev,
+ kbits_rate, kbits_burst)
+ : EOPNOTSUPP);
+}
+
+/* Adds to 'types' all of the forms of QoS supported by 'netdev', or leaves it
+ * empty if 'netdev' does not support QoS. Any names added to 'types' should
+ * be documented as valid for the "type" column in the "QoS" table in
+ * vswitchd/vswitch.xml (which is built as ovs-vswitchd.conf.db(8)).
+ *
+ * Every network device supports disabling QoS with a type of "", but this type
+ * will not be added to 'types'.
+ *
+ * The caller must initialize 'types' (e.g. with svec_init()) before calling
+ * this function. The caller is responsible for destroying 'types' (e.g. with
+ * svec_destroy()) when it is no longer needed.
+ *
+ * Returns 0 if successful, otherwise a positive errno value. */
+int
+netdev_get_qos_types(const struct netdev *netdev, struct svec *types)
+{
+ const struct netdev_class *class = netdev_get_dev(netdev)->netdev_class;
+ return (class->get_qos_types
+ ? class->get_qos_types(netdev, types)
+ : 0);
+}
+
+/* Queries 'netdev' for its capabilities regarding the specified 'type' of QoS,
+ * which should be "" or one of the types returned by netdev_get_qos_types()
+ * for 'netdev'. Returns 0 if successful, otherwise a positive errno value.
+ * On success, initializes 'caps' with the QoS capabilities; on failure, clears
+ * 'caps' to all zeros. */
+int
+netdev_get_qos_capabilities(const struct netdev *netdev, const char *type,
+ struct netdev_qos_capabilities *caps)
+{
+ const struct netdev_class *class = netdev_get_dev(netdev)->netdev_class;
+
+ if (*type) {
+ int retval = (class->get_qos_capabilities
+ ? class->get_qos_capabilities(netdev, type, caps)
+ : EOPNOTSUPP);
+ if (retval) {
+ memset(caps, 0, sizeof *caps);