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qemu: command: Extract tests for subsets of blkdeviotune settings

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When checking capabilities for qemu we need to check whether subsets of
the disk throttling settings are supported. Extract the checks into a
separate functions as they will be reused in next patch.
This commit is contained in:
Peter Krempa 2017-03-17 09:23:54 +01:00
parent 942e6a73bc
commit 70f0911278
1 changed files with 40 additions and 19 deletions
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59
src/qemu/qemu_command.c
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@ -1199,17 +1199,49 @@ qemuGetDriveSourceString(virStorageSourcePtr src,
}
static bool
qemuDiskConfigBlkdeviotuneHasBasic(virDomainDiskDefPtr disk)
{
return disk->blkdeviotune.total_bytes_sec ||
disk->blkdeviotune.read_bytes_sec ||
disk->blkdeviotune.write_bytes_sec ||
disk->blkdeviotune.total_iops_sec ||
disk->blkdeviotune.read_iops_sec ||
disk->blkdeviotune.write_iops_sec;
}
static bool
qemuDiskConfigBlkdeviotuneHasMax(virDomainDiskDefPtr disk)
{
return disk->blkdeviotune.total_bytes_sec_max ||
disk->blkdeviotune.read_bytes_sec_max ||
disk->blkdeviotune.write_bytes_sec_max ||
disk->blkdeviotune.total_iops_sec_max ||
disk->blkdeviotune.read_iops_sec_max ||
disk->blkdeviotune.write_iops_sec_max ||
disk->blkdeviotune.size_iops_sec;
}
static bool
qemuDiskConfigBlkdeviotuneHasMaxLength(virDomainDiskDefPtr disk)
{
return disk->blkdeviotune.total_bytes_sec_max_length ||
disk->blkdeviotune.read_bytes_sec_max_length ||
disk->blkdeviotune.write_bytes_sec_max_length ||
disk->blkdeviotune.total_iops_sec_max_length ||
disk->blkdeviotune.read_iops_sec_max_length ||
disk->blkdeviotune.write_iops_sec_max_length;
}
static int
qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps)
{
/* block I/O throttling */
if ((disk->blkdeviotune.total_bytes_sec ||
disk->blkdeviotune.read_bytes_sec ||
disk->blkdeviotune.write_bytes_sec ||
disk->blkdeviotune.total_iops_sec ||
disk->blkdeviotune.read_iops_sec ||
disk->blkdeviotune.write_iops_sec) &&
if (qemuDiskConfigBlkdeviotuneHasBasic(disk) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("block I/O throttling not supported with this "
@ -1218,13 +1250,7 @@ qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
}
/* block I/O throttling 1.7 */
if ((disk->blkdeviotune.total_bytes_sec_max ||
disk->blkdeviotune.read_bytes_sec_max ||
disk->blkdeviotune.write_bytes_sec_max ||
disk->blkdeviotune.total_iops_sec_max ||
disk->blkdeviotune.read_iops_sec_max ||
disk->blkdeviotune.write_iops_sec_max ||
disk->blkdeviotune.size_iops_sec) &&
if (qemuDiskConfigBlkdeviotuneHasMax(disk) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("there are some block I/O throttling parameters "
@ -1242,12 +1268,7 @@ qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
}
/* block I/O throttling length 2.6 */
if ((disk->blkdeviotune.total_bytes_sec_max_length ||
disk->blkdeviotune.read_bytes_sec_max_length ||
disk->blkdeviotune.write_bytes_sec_max_length ||
disk->blkdeviotune.total_iops_sec_max_length ||
disk->blkdeviotune.read_iops_sec_max_length ||
disk->blkdeviotune.write_iops_sec_max_length) &&
if (qemuDiskConfigBlkdeviotuneHasMaxLength(disk) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("there are some block I/O throttling length parameters "