173 lines
6.3 KiB
Python
173 lines
6.3 KiB
Python
# Copyright 2020 Inspur Electronic Information Industry Co.,LTD.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Utils for SSD driver.
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"""
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from oslo_concurrency import processutils
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from oslo_log import log as logging
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from oslo_serialization import jsonutils
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import re
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from cyborg.accelerator.common import utils
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from cyborg.common import constants
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from cyborg.conf import CONF
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from cyborg.objects.driver_objects import driver_attach_handle
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from cyborg.objects.driver_objects import driver_attribute
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from cyborg.objects.driver_objects import driver_controlpath_id
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from cyborg.objects.driver_objects import driver_deployable
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from cyborg.objects.driver_objects import driver_device
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import cyborg.privsep
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LOG = logging.getLogger(__name__)
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SSD_FLAGS = ["Non-Volatile memory controller"]
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SSD_INFO_PATTERN = re.compile(r"(?P<devices>[0-9a-fA-F]{4}:[0-9a-fA-F]{2}:"
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r"[0-9a-fA-F]{2}\.[0-9a-fA-F]) "
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r"(?P<controller>.*) [\[].*]: (?P<model>.*) .*"
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r"[\[](?P<vendor_id>[0-9a-fA-F]"
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r"{4}):(?P<product_id>[0-9a-fA-F]{4})].*")
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VENDOR_MAPS = utils.get_vendor_maps()
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@cyborg.privsep.sys_admin_pctxt.entrypoint
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def lspci_privileged():
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cmd = ['lspci', '-nn', '-D']
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return processutils.execute(*cmd)
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def get_pci_devices(pci_flags, vendor_id=None):
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device_for_vendor_out = []
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all_device_out = []
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lspci_out = lspci_privileged()[0].split('\n')
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for i in range(len(lspci_out)):
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if any(x in lspci_out[i] for x in pci_flags):
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all_device_out.append(lspci_out[i])
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if vendor_id and vendor_id in lspci_out[i]:
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device_for_vendor_out.append(lspci_out[i])
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return device_for_vendor_out if vendor_id else all_device_out
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def get_traits(vendor_id, product_id):
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"""Generate traits for SSDs.
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: param vendor_id: vendor_id of SSD, eg."1bd4"
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: param product_id: product_id of SSD, eg."1003".
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Example SSD traits:
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{traits:["CUSTOM_SSD_INSPUR", "CUSTOM_SSD_PRODUCT_ID_1003"]}
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"""
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traits = []
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traits.append("CUSTOM_SSD_" + VENDOR_MAPS.get(vendor_id, "").upper())
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traits.append("CUSTOM_SSD_PRODUCT_ID_" + product_id.upper())
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return {"traits": traits}
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def discover_vendors():
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vendors = set()
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ssds = get_pci_devices(SSD_FLAGS)
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for ssd in ssds:
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m = SSD_INFO_PATTERN.match(ssd)
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if m:
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vendor_id = m.groupdict().get("vendor_id")
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vendors.add(vendor_id)
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return vendors
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def discover_ssds(vendor_id=None):
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ssd_list = []
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ssds = get_pci_devices(SSD_FLAGS, vendor_id)
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for ssd in ssds:
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m = SSD_INFO_PATTERN.match(ssd)
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if m:
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ssd_dict = m.groupdict()
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ssd_dict['hostname'] = CONF.host
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# generate traits info
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traits = get_traits(ssd_dict["vendor_id"], ssd_dict["product_id"])
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ssd_dict["rc"] = constants.RESOURCES["SSD"]
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ssd_dict.update(traits)
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ssd_list.append(_generate_driver_device(ssd_dict))
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return ssd_list
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def _generate_driver_device(ssd):
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driver_device_obj = driver_device.DriverDevice()
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driver_device_obj.vendor = ssd["vendor_id"]
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driver_device_obj.model = ssd.get('model', 'miss model info')
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std_board_info = {'product_id': ssd.get('product_id', None),
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'controller': ssd.get('controller', None)}
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vendor_board_info = {'vendor_info': ssd.get('vendor_info', 'ssd_vb_info')}
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driver_device_obj.std_board_info = jsonutils.dumps(std_board_info)
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driver_device_obj.vendor_board_info = jsonutils.dumps(vendor_board_info)
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driver_device_obj.type = constants.DEVICE_SSD
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driver_device_obj.stub = ssd.get('stub', False)
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driver_device_obj.controlpath_id = _generate_controlpath_id(ssd)
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driver_device_obj.deployable_list = _generate_dep_list(ssd)
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return driver_device_obj
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def _generate_controlpath_id(ssd):
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driver_cpid = driver_controlpath_id.DriverControlPathID()
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# NOTE: SSDs , they all report "PCI" as
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# their cpid_type, while attach_handle_type of them are different.
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driver_cpid.cpid_type = "PCI"
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driver_cpid.cpid_info = utils.pci_str_to_json(ssd["devices"])
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return driver_cpid
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def _generate_dep_list(ssd):
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dep_list = []
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driver_dep = driver_deployable.DriverDeployable()
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driver_dep.attribute_list = _generate_attribute_list(ssd)
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driver_dep.attach_handle_list = []
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# NOTE(wenping) Now simply named as <Compute_hostname>_<Device_address>
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# once cyborg needs to support SSD devices discovered from a baremetal
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# node, we might need to support more formats.
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driver_dep.name = ssd.get('hostname', '') + '_' + ssd["devices"]
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driver_dep.driver_name = VENDOR_MAPS.get(ssd["vendor_id"]).upper()
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# driver_dep.num_accelerators for SSD is 1
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driver_dep.num_accelerators = 1
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driver_dep.attach_handle_list = [_generate_attach_handle(ssd)]
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dep_list.append(driver_dep)
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return dep_list
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def _generate_attach_handle(ssd):
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driver_ah = driver_attach_handle.DriverAttachHandle()
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if ssd["rc"] == "CUSTOM_SSD":
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driver_ah.attach_type = constants.AH_TYPE_PCI
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else:
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driver_ah.attach_type = constants.AH_TYPE_MDEV
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driver_ah.in_use = False
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driver_ah.attach_info = utils.pci_str_to_json(ssd["devices"])
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return driver_ah
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def _generate_attribute_list(ssd):
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attr_list = []
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for k, v in ssd.items():
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if k == "rc":
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driver_attr = driver_attribute.DriverAttribute()
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driver_attr.key, driver_attr.value = k, v
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attr_list.append(driver_attr)
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if k == "traits":
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values = ssd.get(k, [])
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for index, val in enumerate(values):
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driver_attr = driver_attribute.DriverAttribute(
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key="trait" + str(index), value=val)
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attr_list.append(driver_attr)
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return attr_list
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