dpif-netdev: Add poll-mode-device thread.

[sliver-openvswitch.git] / lib / netdev.c

diff --git a/lib/netdev.c b/lib/netdev.c
index 0d7b69d..91c9ea5 100644 (file)
--- a/lib/netdev.c
+++ b/lib/netdev.c
@@ -90,6 +90,12 @@ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
 static void restore_all_flags(void *aux OVS_UNUSED);
 void update_device_args(struct netdev *, const struct shash *args);
 
+bool
+netdev_is_pmd(const struct netdev *netdev)
+{
+    return !strcmp(netdev->netdev_class->type, "dpdk");
+}
+
 static void
 netdev_initialize(void)
     OVS_EXCLUDED(netdev_class_mutex, netdev_mutex)
@@ -599,7 +605,7 @@ netdev_rx_drain(struct netdev_rx *rx)
  * immediately.  Returns EMSGSIZE if a partial packet was transmitted or if
  * the packet is too big or too small to transmit on the device.
  *
- * The caller retains ownership of 'buffer' in all cases.
+ * To retain ownership of 'buffer' caller can set may_steal to false.
  *
  * The kernel maintains a packet transmission queue, so the caller is not
  * expected to do additional queuing of packets.
@@ -607,12 +613,12 @@ netdev_rx_drain(struct netdev_rx *rx)
  * Some network devices may not implement support for this function.  In such
  * cases this function will always return EOPNOTSUPP. */
 int
-netdev_send(struct netdev *netdev, const struct ofpbuf *buffer)
+netdev_send(struct netdev *netdev, struct ofpbuf *buffer, bool may_steal)
 {
     int error;
 
     error = (netdev->netdev_class->send
-             ? netdev->netdev_class->send(netdev, buffer->data, buffer->size)
+             ? netdev->netdev_class->send(netdev, buffer, may_steal)
              : EOPNOTSUPP);
     if (!error) {
         COVERAGE_INC(netdev_sent);