ethtool: insert channels into Ethtool cls

pyroute2/ethtool/ethtool.py

@@ -71,6 +71,20 @@ def to_ioctl(ioctl_features, eth_features):
             ioctl_features[feature.name] = feature.enable
 
 
+class EthtoolChannels(namedtuple('EthtoolChannels', (
+    "max_rx", "max_tx", "max_other", "max_combined",
+    "rx_count", "tx_count", "other_count", "combined_count",
+))):
+    @classmethod
+    def from_ioctl(cls, channels):
+        return cls(**{k: getattr(channels, k) for k in cls._fields})
+
+    @staticmethod
+    def to_ioctl(ioctl_channels, eth_channel):
+        for key, val in eth_channel.items():
+            setattr(ioctl_channels, key, val)
+
+
 class EthtoolWakeOnLan(namedtuple('EthtoolWolMode', ('modes', 'sopass'))):
     @classmethod
     def from_netlink(cls, nl_wol):
@@ -465,6 +479,16 @@ def set_features(self, ifname, features):
         EthtoolFeatures.to_ioctl(ioctl_features, features)
         self._with_ioctl.set_features(ioctl_features)
 
+    def get_channels(self, ifname):
+        self._with_ioctl.change_ifname(ifname)
+        return EthtoolChannels.from_ioctl(self._with_ioctl.get_channels())
+
+    def set_channels(self, ifname, channels):
+        self._with_ioctl.change_ifname(ifname)
+        ioctl_channels = self._with_ioctl.get_channels()
+        EthtoolChannels.to_ioctl(ioctl_channels, channels)
+        self._with_ioctl.set_channels(ioctl_channels)
+
     def get_coalesce(self, ifname):
         self._with_ioctl.change_ifname(ifname)
         return EthtoolCoalesce.from_ioctl(self._with_ioctl.get_coalesce())