diff options
Diffstat (limited to 'python/vyos/ethtool.py')
| -rw-r--r-- | python/vyos/ethtool.py | 82 |
1 files changed, 73 insertions, 9 deletions
diff --git a/python/vyos/ethtool.py b/python/vyos/ethtool.py index 7dcb68346..609d83b5e 100644 --- a/python/vyos/ethtool.py +++ b/python/vyos/ethtool.py @@ -13,7 +13,9 @@ # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. +import os import re + from vyos.util import popen class Ethtool: @@ -41,8 +43,22 @@ class Ethtool: # } _speed_duplex = { } _ring_buffers = { } + _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 + sysfs_file = f'/sys/class/net/{ifname}/device/driver/module' + if os.path.exists(sysfs_file): + link = os.readlink(sysfs_file) + self._driver_name = os.path.basename(link) + + if not self._driver_name: + raise ValueError(f'Could not determine driver for interface {ifname}!') + # Build a dictinary of supported link-speed and dupley settings. out, err = popen(f'ethtool {ifname}') reading = False @@ -53,7 +69,6 @@ class Ethtool: reading = True if 'Supported pause frame use:' in line: reading = False - break if reading: for block in line.split(): if pattern.search(block): @@ -63,6 +78,15 @@ class Ethtool: self._speed_duplex.update({ speed : {}}) if duplex not in self._speed_duplex[speed]: self._speed_duplex[speed].update({ duplex : ''}) + if 'Auto-negotiation:' in line: + # Split the following string: Auto-negotiation: off + # we are only interested in off or on + tmp = line.split()[-1] + self._auto_negotiation = bool(tmp == 'on') + + if self._auto_negotiation == None: + raise ValueError(f'Could not determine auto-negotiation settings '\ + f'for interface {ifname}!') # Now populate features dictionaty out, err = popen(f'ethtool --show-features {ifname}') @@ -78,7 +102,7 @@ class Ethtool: 'fixed' : fixed } - out, err = popen(f'ethtool -g {ifname}') + out, err = popen(f'ethtool --show-ring {ifname}') # We are only interested in line 2-5 which contains the device maximum # ringbuffers for line in out.splitlines()[2:6]: @@ -89,7 +113,26 @@ class Ethtool: # output format from 0 -> n/a. As we are only interested in the # tx/rx keys we do not care about RX Mini/Jumbo. if value.isdigit(): - self._ring_buffers[key] = int(value) + self._ring_buffers_max[key] = value + # Now we wan't to get the current RX/TX ringbuffer values - used for + for line in out.splitlines()[7:11]: + if ':' in line: + key, value = [s.strip() for s in line.strip().split(":", 1)] + key = key.lower().replace(' ', '_') + # T3645: ethtool version used on Debian Bullseye changed the + # output format from 0 -> n/a. As we are only interested in the + # tx/rx keys we do not care about RX Mini/Jumbo. + if value.isdigit(): + self._ring_buffers[key] = 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): """ @@ -122,15 +165,19 @@ class Ethtool: def get_tcp_segmentation_offload(self): return self._get_generic('tcp-segmentation-offload') - def get_rx_buffer(self): - # Configuration of RX ring-buffers is not supported on every device, + def get_ring_buffer_max(self, rx_tx): + # Configuration of RX/TX ring-buffers is not supported on every device, # thus when it's impossible return None - return self._ring_buffers.get('rx', None) + if rx_tx not in ['rx', 'tx']: + ValueError('Ring-buffer type must be either "rx" or "tx"') + return self._ring_buffers_max.get(rx_tx, None) - def get_tx_buffer(self): - # Configuration of TX ring-buffers is not supported on every device, + def get_ring_buffer(self, rx_tx): + # Configuration of RX/TX ring-buffers is not supported on every device, # thus when it's impossible return None - return self._ring_buffers.get('tx', None) + if rx_tx not in ['rx', 'tx']: + ValueError('Ring-buffer type must be either "rx" or "tx"') + return str(self._ring_buffers.get(rx_tx, None)) def check_speed_duplex(self, speed, duplex): """ Check if the passed speed and duplex combination is supported by @@ -142,8 +189,25 @@ class Ethtool: if duplex not in ['full', 'half']: raise ValueError(f'Value "{duplex}" for duplex is invalid!') + if self._driver_name in ['vmxnet3', 'virtio_net', 'xen_netfront']: + return False + if speed in self._speed_duplex: if duplex in self._speed_duplex[speed]: 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 |