205 lines
8.5 KiB
Python
Executable File
205 lines
8.5 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2016 Mellanox Technologies, Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import sys
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import subprocess
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import logging
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import traceback
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import glob
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LOG_FILE = '/var/log/mellanox-plugin.log'
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class MellanoxVfsSettingsException(Exception):
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pass
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class MellanoxVfsSettings(object):
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mellanox_vfs = list();
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@classmethod
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def get_pci_list(cls):
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cmd_vfs = "lspci -D | grep -i mellanox | grep -i virtual | awk '{print $1}'"
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p_lspci = subprocess.Popen(cmd_vfs, shell=True, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_lspci.wait()
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if retval != 0:
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print 'Failed to execute command lspci.'
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logging.error("Failed to find mellanox VFs.")
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sys.exit(1)
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pci_res = list()
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for line in p_lspci.stdout.readlines():
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pci_res.append(line.rstrip())
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return pci_res
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@classmethod
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def build_vfs_dict(cls):
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pci_res = cls.get_pci_list()
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cmd_vfs_data = "ibdev2netdev -v"
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p_vfs_data = subprocess.Popen(cmd_vfs_data, shell=True, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_vfs_data.wait()
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if retval != 0:
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print 'Failed to execute command ibdev2netdev -v.'
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logging.error("Failed to execute ibdev2netdev -v")
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sys.exit(1)
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ibdev = list()
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for vf_data in p_vfs_data.stdout.readlines():
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ibdev.append(vf_data.rstrip())
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cmd_vfs_macs = "ip link show | grep vf | awk '{print $4}' | tr -d ','"
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p_vfs_macs = subprocess.Popen(cmd_vfs_macs, shell=True, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_vfs_macs.wait()
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if retval != 0:
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print 'Failed to execute command ip link show | grep vf '
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logging.error("Failed to find VFs in ip link show command")
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sys.exit(1)
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mac_list = list()
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for mac in p_vfs_macs.stdout.readlines():
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mac_list.append(mac.rstrip())
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count = 0
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for pci_address in pci_res:
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vf_dict = dict();
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vf_info = next((vf_info for vf_info in ibdev if pci_address in vf_info), None)
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vf_info = vf_info.split();
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vf_dict['vf_num'] = count;
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vf_dict['pci_address'] = vf_info[0]
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vf_dict['port_module'] = vf_info[1]
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vf_dict['port_num'] = vf_info[12]
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vf_dict['mac'] = mac_list[count]
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cls.mellanox_vfs.append(vf_dict)
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count += 1;
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@classmethod
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def unbind(cls):
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for vf in cls.mellanox_vfs:
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cmd_vfs_pci = "echo {0} ".format(vf['pci_address']) + \
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">> /sys/bus/pci/drivers/mlx5_core/unbind"
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p_unbind_pci = subprocess.Popen(cmd_vfs_pci, shell=True, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_unbind_pci.wait()
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if retval != 0:
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logging.error("Failed to unbind pci address {0}".format(vf['pci_address']))
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sys.exit(1)
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logging.info("Managed to unbind VFs.")
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@classmethod
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def bind(cls):
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for vf in cls.mellanox_vfs:
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cmd_vfs_pci = "echo {0} ".format(vf['pci_address']) + \
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">> /sys/bus/pci/drivers/mlx5_core/bind"
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p_bind_pci = subprocess.Popen(cmd_vfs_pci, shell=True, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_bind_pci.wait()
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if retval != 0:
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print 'Bind: Error is:', p_bind_pci.stdout.readlines()
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logging.error("Failed to bind pci address {0}".format(vf['pci_address']) )
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sys.exit(1)
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else:
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print 'Managed to bind pci address ', vf['pci_address']
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logging.debug("Managed to bind pci address {0}".format(vf['pci_address']) )
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logging.info("Managed to bind VFs.")
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@classmethod
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def assign_mac_per_vf(cls):
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for vf in cls.mellanox_vfs:
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if "00:00:00:00:00:00" in vf['mac']:
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cmd_generate_mac = "ibstat {0} {1} |".format(vf['port_module'], vf['port_num']) + \
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" grep GUID | cut -d' ' -f3 | cut -d'x' -f2"
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p_cmd_generate_mac = subprocess.Popen(cmd_generate_mac, shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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retval = p_cmd_generate_mac.wait()
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if retval != 0:
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print 'Failed to get ibstat port guid'
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logging.error("Failed to find PORT GUID to set it as a MAC address for the VF")
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sys.exit(1)
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port_guid = p_cmd_generate_mac.stdout.readlines()[0].rstrip();
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port_guid_to_mac = port_guid[0:12]
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port_guid_to_mac = ':'.join(port_guid_to_mac[i:i+2] for i in range \
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(0, len(port_guid_to_mac), 2))
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vf['mac'] = port_guid_to_mac
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@classmethod
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def set_mac_per_vf(cls):
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cmd_physical_port = "hiera mellanox-plugin | grep physical_port | cut -d'>' -f2 "
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p = subprocess.Popen(cmd_physical_port ,shell=True,stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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physical_port = p.stdout.readlines()[0].rstrip()
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physical_port = physical_port.strip(',"')
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for vf in cls.mellanox_vfs:
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cmd_set_mac_per_vf = "ip link set " + \
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"{0} vf {1} mac {2}".format(physical_port,vf['vf_num'], vf['mac'])
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p_cmd_set_mac_per_vf = subprocess.Popen(cmd_set_mac_per_vf,shell=True,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_cmd_set_mac_per_vf.wait()
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if retval != 0:
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print 'Failed to set vf mac', cmd_set_mac_per_vf
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logging.error("Failed to set MAC address to VF {0}".format(vf['vf_num']))
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sys.exit(1)
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@classmethod
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def wait_for_mlx_modules_and_vfs_loaded(cls, total_vfs):
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retval = 1
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while (retval != 0):
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cmd_lsmod = "lsmod | grep mlx_compat"
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p_lsmod = subprocess.Popen(cmd_lsmod, shell=True,stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_lsmod.wait()
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logging.info("mlx_compat module is loaded!")
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number_of_vfs = 0
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while ( number_of_vfs != total_vfs):
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cmd_number_vfs = "lspci | grep -i mellanox | grep -i virtual | wc -l"
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p_number_vfs = subprocess.Popen(cmd_number_vfs, shell=True,stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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retval = p_number_vfs.wait()
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if retval != 0:
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logging.error("Failed to run lspci")
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sys.exit(1)
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number_of_vfs = int(p_number_vfs.stdout.readlines()[0].rstrip());
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logging.info("all VFs are loaded.")
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def main(total_vfs):
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logging.basicConfig(format='%(asctime)s %(message)s',
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level=logging.DEBUG, filename=LOG_FILE)
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try:
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vfs_configurations = MellanoxVfsSettings()
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vfs_configurations.wait_for_mlx_modules_and_vfs_loaded(int(total_vfs))
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vfs_configurations.build_vfs_dict()
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vfs_configurations.assign_mac_per_vf()
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vfs_configurations.unbind()
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vfs_configurations.set_mac_per_vf()
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vfs_configurations.bind()
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except MellanoxVfsSettingsException, exc:
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error_msg = "Failed configuring Mellanox vfs: {0}\n".format(exc)
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sys.stderr.write(error_msg)
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logging.error(exc)
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sys.exit(1)
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success_msg = "Done configuring Mellanox vfs\n"
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sys.stdout.write(success_msg)
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logging.info(success_msg)
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sys.exit(0)
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if __name__=="__main__":
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main(sys.argv[1])
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