openstack
/
os-net-config
Code Issues Proposed changes

Notify the need for overriding the default driver for Mellanox NIC 

In case of mellanox cards, the interfaces used for DPDK ports
shall not be bound with vfio-pci (default) driver. An explicit error
message shall be thrown when the required drivers are not specified
in the user templates.

Change-Id: I69b362079905c3957504e4958abfeeb9923cf07f
This commit is contained in:
Karthik S 2021-12-01 08:07:20 +00:00
parent ca522c25ed
commit 3ee0c463ca
1 changed files with 6 additions and 1 deletions
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7
os_net_config/utils.py
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@ -287,6 +287,11 @@ def diff(filename, data):
def bind_dpdk_interfaces(ifname, driver, noop):
if common.is_mellanox_interface(ifname) and 'vfio-pci' in driver:
msg = ("For Mellanox NIC %s, the default driver vfio-pci "
"needs to be overridden" % ifname)
raise OvsDpdkBindException(msg)
iface_driver = get_interface_driver(ifname)
if iface_driver == driver:
logger.info("Driver (%s) is already bound to the device (%s)" %
@ -322,7 +327,7 @@ def bind_dpdk_interfaces(ifname, driver, noop):
# - get_dpdk_devargs() in case of OvsDpdkPort and
# OvsDpdkBond.
# - bind_dpdk_interface() in case of OvsDpdkBond.
if vendor_id == "0x15b3":
if vendor_id == common.MLNX_VENDOR_ID:
processutils.execute('ethtool', '-i', ifname,
attempts=10)