Commits on Apr 23, 2024

1. Add ethtool monitoring support to Flent …

   This commit adds ethtool monitoring to Flent. The "common.inc" file
   includes this capability in most Flent tests. The ethtool support adds
   three new test parameters: "ethtool_hosts", "ethtool_devices", and
   "ethtool_fields". Behind the scenes, Flent runs the "ethtool -S <nic>
   command on all devices that support it via SSH.
   
   A breakdown of these new parameters is as follows:
   - ethtool_hosts: Specifies the hosts to monitor ethtool fields. The
     hosts are specified using a comma-separated list.
   - ethtool_devices: This parameter specifies which network devices to
     monitor instead of all of them. This parameter is also a
     comma-separated list.
   - ethtool_fields: This parameter defines a comma-separated list of
     fields to monitor. If this field is not set, it will default to
     monitor the "rx_packets" and "tx_packets" fields. The fields can
     also be prefixed with the network card if you only want to see
     that field for that particular device.
   
   Example:
   ethtool_devices=eth0,eth1
   ethtool_fields=tx_packets_phy,rx_packets_phy,eth2:rx_bytes
   
   In this example, the fields "tx_packets_phy" and "rx_packets_phy" will
   be monitored on eth0 and eth1; however, only field rx_bytes will be
   monitored on eth2.
   
   One limitation of this version of the ethtool capability is that all
   hosts will share the same values of devices and fields.
   
   Signed-off-by: Frey Alfredsson <[email protected]>

   

   freysteinn committed Apr 23, 2024
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