diff options
Diffstat (limited to 'mpm/python/usrp_mpm/sys_utils/net.py')
| -rw-r--r-- | mpm/python/usrp_mpm/sys_utils/net.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/mpm/python/usrp_mpm/sys_utils/net.py b/mpm/python/usrp_mpm/sys_utils/net.py index 95dc14ed8..e28c8bda1 100644 --- a/mpm/python/usrp_mpm/sys_utils/net.py +++ b/mpm/python/usrp_mpm/sys_utils/net.py @@ -8,6 +8,7 @@ Network utilities for MPM """ import itertools import socket +import pyudev from six import iteritems from pyroute2 import IPRoute, IPDB from usrp_mpm.mpmlog import get_logger @@ -54,6 +55,7 @@ def get_iface_info(ifname): raise LookupError("No interfaces known with name `{}'!" .format(ifname)) link_info = ipr.get_links(links)[0] + link_speed = get_link_speed(ifname) except IndexError: raise LookupError("Could not get links for interface `{}'" .format(ifname)) @@ -63,8 +65,27 @@ def get_iface_info(ifname): 'mac_addr': mac_addr, 'ip_addr': ip_addrs[0] if ip_addrs else '', 'ip_addrs': ip_addrs, + 'link_speed': link_speed } + +def get_link_speed(ifname): + """ + Given an interface name (e.g 'eth0'), return link speed + of that interface as unsigned interger. + If interface is not found, IndexError will be thrown. + The speed is Megabits/sec + (from kernel at https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-net) + """ + net_sysfs = [device for device in pyudev.Context().list_devices(subsystem='net') + if device.sys_name == ifname][0] + + speed = net_sysfs.attributes.asint('speed') + # TODO: 1Gige driver returns a bad value (less than 1000). Remove the conditional once the + # driver is fixed + return speed if speed >= 10000 else 1000 + + def ip_addr_to_iface(ip_addr, iface_list): """ Return an Ethernet interface (e.g. 'eth1') given an IP address. |