68311a0794
When using the LVM cinder driver the cacheable capability is not being reported by the backend to the scheduler when the transport protocol is NVMe-oF (nvmet target driver), but it is properly reported if it's the LIO target driver. This also happens with other drivers that should be reporting that they are cacheable. This happens because even if the volume manager correctly uses the "storage_protocol" reported by the drivers on their stats to add the "cacheable" capability for iSCSI, FC, and NVMe-oF protocols, it isn't taking into account all the variants these have: - FC, fc, fibre_channel - iSCSI, iscsi - NVMe-oF, nvmeof, NVMeOF Same thing happens for the shared_targets of the volumes, which are not missing an iSCSI variant. This patch creates constants for the different storge protocols to try to avoid these variants (as agreed on the PTG) and also makes the cacheable and shared_targets check against all the existing variants. This change facilitates identifying NVMe-oF drivers (for bug 1961102) for the shared_targets part. Closes-Bug: #1969366 Related-Bug: #1961102 Change-Id: I1333b0471974e94eb2b3b79ea70a06e0afe28cd9
62 lines
1.9 KiB
Python
62 lines
1.9 KiB
Python
# Copyright 2016 Red Hat, Inc.
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# All Rights Reserved.
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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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# The maximum value a signed INT type may have
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DB_MAX_INT = 0x7FFFFFFF
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# The cinder services binaries and topics' names
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API_BINARY = "cinder-api"
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SCHEDULER_BINARY = "cinder-scheduler"
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VOLUME_BINARY = "cinder-volume"
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BACKUP_BINARY = "cinder-backup"
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SCHEDULER_TOPIC = SCHEDULER_BINARY
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VOLUME_TOPIC = VOLUME_BINARY
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BACKUP_TOPIC = BACKUP_BINARY
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LOG_BINARIES = (SCHEDULER_BINARY, VOLUME_BINARY, BACKUP_BINARY, API_BINARY)
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# The encryption key ID used by the legacy fixed-key ConfKeyMgr
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FIXED_KEY_ID = '00000000-0000-0000-0000-000000000000'
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# Storage protocol constants
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CEPH = 'ceph'
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DRBD = 'DRBD'
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FC = 'FC'
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FC_VARIANT_1 = 'fibre_channel'
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FC_VARIANT_2 = 'fc'
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FILE = 'file'
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ISCSI = 'iSCSI'
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ISCSI_VARIANT = 'iscsi'
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ISER = 'iSER'
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LIGHTOS = 'lightos'
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NFS = 'NFS'
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NFS_VARIANT = 'nfs'
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NVMEOF = 'NVMe-oF'
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NVMEOF_VARIANT_1 = 'NVMeOF'
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NVMEOF_VARIANT_2 = 'nvmeof'
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SCALEIO = 'scaleio'
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SCSI = 'SCSI'
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STORPOOL = 'storpool'
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VMDK = 'vmdk'
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VSTORAGE = 'vstorageobject'
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# These must be strings, because there are places that check specific type
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ISCSI_VARIANTS = [ISCSI, ISCSI_VARIANT]
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FC_VARIANTS = [FC, FC_VARIANT_1, FC_VARIANT_2]
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NFS_VARIANTS = [NFS, NFS_VARIANT]
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NVMEOF_VARIANTS = [NVMEOF, NVMEOF_VARIANT_1, NVMEOF_VARIANT_2]
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CACHEABLE_PROTOCOLS = FC_VARIANTS + ISCSI_VARIANTS + NVMEOF_VARIANTS
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