datapath: Rename linux-2.6 and compat-2.6 directories.

[sliver-openvswitch.git] / datapath / linux / compat / netdevice.c

diff --git a/datapath/linux/compat/netdevice.c b/datapath/linux/compat/netdevice.c
new file mode 100644 (file)
index 0000000..1a6f327
--- /dev/null
+++ b/datapath/linux/compat/netdevice.c
@@ -0,0 +1,49 @@
+#include <linux/if_link.h>
+#include <linux/netdevice.h>
+
+/* Linux 2.6.28 introduced dev_get_stats():
+ * const struct net_device_stats *dev_get_stats(struct net_device *dev);
+ *
+ * Linux 2.6.36 changed dev_get_stats() to:
+ * struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+ *                                         struct rtnl_link_stats64 *storage);
+ */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
+struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+                                       struct rtnl_link_stats64 *storage)
+{
+       const struct net_device_stats *stats;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
+       stats = dev->get_stats(dev);
+#else  /* 2.6.28 < kernel version < 2.6.36 */
+       stats = (dev_get_stats)(dev);
+#endif /* 2.6.28 < kernel version < 2.6.36 */
+
+       storage->rx_packets = stats->rx_packets;
+       storage->tx_packets = stats->tx_packets;
+       storage->rx_bytes = stats->rx_bytes;
+       storage->tx_bytes = stats->tx_bytes;
+       storage->rx_errors = stats->rx_errors;
+       storage->tx_errors = stats->tx_errors;
+       storage->rx_dropped = stats->rx_dropped;
+       storage->tx_dropped = stats->tx_dropped;
+       storage->multicast = stats->multicast;
+       storage->collisions = stats->collisions;
+       storage->rx_length_errors = stats->rx_length_errors;
+       storage->rx_over_errors = stats->rx_over_errors;
+       storage->rx_crc_errors = stats->rx_crc_errors;
+       storage->rx_frame_errors = stats->rx_frame_errors;
+       storage->rx_fifo_errors = stats->rx_fifo_errors;
+       storage->rx_missed_errors = stats->rx_missed_errors;
+       storage->tx_aborted_errors = stats->tx_aborted_errors;
+       storage->tx_carrier_errors = stats->tx_carrier_errors;
+       storage->tx_fifo_errors = stats->tx_fifo_errors;
+       storage->tx_heartbeat_errors = stats->tx_heartbeat_errors;
+       storage->tx_window_errors = stats->tx_window_errors;
+       storage->rx_compressed = stats->rx_compressed;
+       storage->tx_compressed = stats->tx_compressed;
+
+       return storage;
+}
+#endif /* kernel version < 2.6.36 */