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987c8d506d
Ubiblk creates one vring_worker thread for each queue. SPDK doesn't support multithreaded vhost backends, so we keep num_queues of SPDK volumes as 1 regardless of the value of `vring_workers`.
84 lines
2.9 KiB
Ruby
84 lines
2.9 KiB
Ruby
# frozen_string_literal: true
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require_relative "../model"
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class VmStorageVolume < Sequel::Model
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many_to_one :vm
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many_to_one :spdk_installation
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many_to_one :vhost_block_backend
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many_to_one :storage_device
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many_to_one :key_encryption_key_1, class: :StorageKeyEncryptionKey
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many_to_one :key_encryption_key_2, class: :StorageKeyEncryptionKey
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many_to_one :boot_image
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plugin :association_dependencies, key_encryption_key_1: :destroy, key_encryption_key_2: :destroy
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plugin ResourceMethods
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def device_id
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"#{vm.inhost_name}_#{disk_index}"
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end
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def device_path
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vm.location.aws? ? "/dev/nvme#{disk_index}n1" : "/dev/disk/by-id/virtio-#{device_id}"
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end
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def spdk_version
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spdk_installation&.version
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end
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def vhost_block_backend_version
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vhost_block_backend&.version
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end
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def num_queues
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@num_queues ||= if vhost_block_backend
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vring_workers
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else
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# SPDK volumes
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1
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end
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end
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def queue_size
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@queue_size ||= if vhost_block_backend
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64
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else
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# SPDK volumes
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256
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end
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end
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end
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# Table: vm_storage_volume
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# Columns:
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# id | uuid | PRIMARY KEY
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# vm_id | uuid | NOT NULL
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# boot | boolean | NOT NULL
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# size_gib | bigint | NOT NULL
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# disk_index | integer | NOT NULL
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# key_encryption_key_1_id | uuid |
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# key_encryption_key_2_id | uuid |
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# spdk_installation_id | uuid |
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# use_bdev_ubi | boolean | NOT NULL DEFAULT false
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# skip_sync | boolean | NOT NULL DEFAULT false
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# storage_device_id | uuid |
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# boot_image_id | uuid |
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# max_read_mbytes_per_sec | integer |
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# max_write_mbytes_per_sec | integer |
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# vhost_block_backend_id | uuid |
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# vring_workers | integer |
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# Indexes:
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# vm_storage_volume_pkey | PRIMARY KEY btree (id)
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# vm_storage_volume_vm_id_disk_index_key | UNIQUE btree (vm_id, disk_index)
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# Check constraints:
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# vring_workers_null_if_not_ubiblk | (vhost_block_backend_id IS NOT NULL OR vring_workers IS NULL)
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# vring_workers_positive_if_ubiblk | (vhost_block_backend_id IS NULL OR vring_workers IS NOT NULL AND vring_workers > 0)
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# Foreign key constraints:
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# vm_storage_volume_boot_image_id_fkey | (boot_image_id) REFERENCES boot_image(id)
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# vm_storage_volume_key_encryption_key_1_id_fkey | (key_encryption_key_1_id) REFERENCES storage_key_encryption_key(id)
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# vm_storage_volume_key_encryption_key_2_id_fkey | (key_encryption_key_2_id) REFERENCES storage_key_encryption_key(id)
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# vm_storage_volume_spdk_installation_id_fkey | (spdk_installation_id) REFERENCES spdk_installation(id)
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# vm_storage_volume_storage_device_id_fkey | (storage_device_id) REFERENCES storage_device(id)
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# vm_storage_volume_vhost_block_backend_id_fkey | (vhost_block_backend_id) REFERENCES vhost_block_backend(id)
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# vm_storage_volume_vm_id_fkey | (vm_id) REFERENCES vm(id)
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