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Diffstat (limited to 'python/vyos/ethtool.py')
| -rw-r--r-- | python/vyos/ethtool.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/python/vyos/ethtool.py b/python/vyos/ethtool.py index f5796358d..87b9d7dd0 100644 --- a/python/vyos/ethtool.py +++ b/python/vyos/ethtool.py @@ -46,6 +46,8 @@ class Ethtool: _ring_buffers_max = { } _driver_name = None _auto_negotiation = None + _flow_control = None + _flow_control_enabled = None def __init__(self, ifname): # Get driver used for interface @@ -123,6 +125,15 @@ class Ethtool: if value.isdigit(): self._ring_buffers[key] = int(value) + # Get current flow control settings, but this is not supported by + # all NICs (e.g. vmxnet3 does not support is) + out, err = popen(f'ethtool --show-pause {ifname}') + if len(out.splitlines()) > 1: + self._flow_control = True + # read current flow control setting, this returns: + # ['Autonegotiate:', 'on'] + self._flow_control_enabled = out.splitlines()[1].split()[-1] + def _get_generic(self, feature): """ Generic method to read self._features and return a tuple for feature @@ -186,5 +197,17 @@ class Ethtool: return True return False + def check_flow_control(self): + """ Check if the NIC supports flow-control """ + if self._driver_name in ['vmxnet3', 'virtio_net', 'xen_netfront']: + return False + return self._flow_control + + def get_flow_control(self): + if self._flow_control_enabled == None: + raise ValueError('Interface does not support changing '\ + 'flow-control settings!') + return self._flow_control_enabled + def get_auto_negotiation(self): return self._auto_negotiation |