Re: [libvirt] [PATCH v2 4/9] qemu: Add bps_max and friends qemu driver

Add support for bps_max and friends in the driver part. In the part checking if a qemu is running, check if the running binary support bps_max, if not print an error message, if yes add it to "info" variable Signed-off-by: Matthias Gatto <matthias.gatto(a)outscale.com&gt; --- src/qemu/qemu_driver.c | 158 +++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 152 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 2c3f179..7d024b3 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -104,6 +104,7 @@ VIR_LOG_INIT("qemu.qemu_driver"); #define QEMU_NB_MEM_PARAM 3 #define QEMU_NB_BLOCK_IO_TUNE_PARAM 6 +#define QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX 13

#define QEMU_NB_NUMA_PARAM 2 @@ -15818,8 +15819,12 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, int idx = -1; bool set_bytes = false; bool set_iops = false; + bool set_bytes_max = false; + bool set_iops_max = false; + bool set_size_iops = false; virQEMUDriverConfigPtr cfg = NULL; virCapsPtr caps = NULL; + info.suport_max_options = true;

virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG, -1); @@ -15836,6 +15841,20 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, VIR_TYPED_PARAM_ULLONG, VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC, VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC, + VIR_TYPED_PARAM_ULLONG, NULL) < 0) return -1; @@ -15902,6 +15921,34 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC)) { info.write_iops_sec = param->value.ul; set_iops = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX)) { + info.total_bytes_sec_max = param->value.ul; + set_bytes_max = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX)) { + info.read_bytes_sec_max = param->value.ul; + set_bytes_max = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX)) { + info.write_bytes_sec_max = param->value.ul; + set_bytes_max = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX)) { + info.total_iops_sec_max = param->value.ul; + set_iops_max = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX)) { + info.read_iops_sec_max = param->value.ul; + set_iops_max = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX)) { + info.write_iops_sec_max = param->value.ul; + set_iops_max = true; + } else if (STREQ(param->field, + VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC)) { + info.size_iops_sec = param->value.ul; + set_size_iops = true; } } @@ -15919,11 +15966,33 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, goto endjob; } + if ((info.total_bytes_sec_max && info.read_bytes_sec_max) || + (info.total_bytes_sec_max && info.write_bytes_sec_max)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("total and read/write of bytes_sec_max cannot be set at the same time")); + goto endjob; + } + + if ((info.total_iops_sec_max && info.read_iops_sec_max) || + (info.total_iops_sec_max && info.write_iops_sec_max)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("total and read/write of iops_sec_max cannot be set at the same time")); + goto endjob; + } + if (flags & VIR_DOMAIN_AFFECT_LIVE) { if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE)) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("block I/O throttling not supported with this " - "QEMU binary")); + _("block I/O throttling not supported with this " + "QEMU binary")); + goto endjob; + } + + info.suport_max_options = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX);

+ if ((!info.suport_max_options) && (set_iops_max || set_bytes_max)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("a block I/O throttling parameter is not supported with this " + "QEMU binary")); goto endjob; } @@ -15936,11 +16005,23 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, info.read_bytes_sec = oldinfo->read_bytes_sec; info.write_bytes_sec = oldinfo->write_bytes_sec; } + if (!set_bytes_max) { + info.total_bytes_sec_max = oldinfo->total_bytes_sec_max; + info.read_bytes_sec_max = oldinfo->read_bytes_sec_max; + info.write_bytes_sec_max = oldinfo->write_bytes_sec_max; + } if (!set_iops) { info.total_iops_sec = oldinfo->total_iops_sec; info.read_iops_sec = oldinfo->read_iops_sec; info.write_iops_sec = oldinfo->write_iops_sec; } + if (!set_iops_max) { + info.total_iops_sec_max = oldinfo->total_iops_sec_max; + info.read_iops_sec_max = oldinfo->read_iops_sec_max; + info.write_iops_sec_max = oldinfo->write_iops_sec_max; + } + if (!set_size_iops) + info.size_iops_sec = oldinfo->size_iops_sec; qemuDomainObjEnterMonitor(driver, vm); ret = qemuMonitorSetBlockIoThrottle(priv->mon, device, &info); qemuDomainObjExitMonitor(driver, vm); @@ -15957,11 +16038,23 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, info.read_bytes_sec = oldinfo->read_bytes_sec; info.write_bytes_sec = oldinfo->write_bytes_sec; } + if (!set_bytes_max) { + info.total_bytes_sec_max = oldinfo->total_bytes_sec_max; + info.read_bytes_sec_max = oldinfo->read_bytes_sec_max; + info.write_bytes_sec_max = oldinfo->write_bytes_sec_max; + } if (!set_iops) { info.total_iops_sec = oldinfo->total_iops_sec; info.read_iops_sec = oldinfo->read_iops_sec; info.write_iops_sec = oldinfo->write_iops_sec; } + if (!set_iops_max) { + info.total_iops_sec_max = oldinfo->total_iops_sec_max; + info.read_iops_sec_max = oldinfo->read_iops_sec_max; + info.write_iops_sec_max = oldinfo->write_iops_sec_max; + } + if (!set_size_iops) + info.size_iops_sec = oldinfo->size_iops_sec; persistentDef->disks[idx]->blkdeviotune = info; ret = virDomainSaveConfig(cfg->configDir, persistentDef); if (ret < 0) { @@ -15972,6 +16065,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom, } endjob: + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; @@ -16001,6 +16095,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom, size_t i; virCapsPtr caps = NULL; virQEMUDriverConfigPtr cfg = NULL; + reply.suport_max_options = true; virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG | @@ -16027,7 +16122,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom, if ((*nparams) == 0) { /* Current number of parameters supported by QEMU Block I/O Throttling */ - *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM; + *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX;

ret = 0; goto cleanup; } @@ -16046,6 +16141,9 @@ qemuDomainGetBlockIoTune(virDomainPtr dom, if (flags & VIR_DOMAIN_AFFECT_LIVE) { priv = vm->privateData; + reply.suport_max_options = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX); + if (!reply.suport_max_options) + *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM; qemuDomainObjEnterMonitor(driver, vm); ret = qemuMonitorGetBlockIoThrottle(priv->mon, device, &reply);

qemuDomainObjExitMonitor(driver, vm); @@ -16060,7 +16158,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom, reply = persistentDef->disks[idx]->blkdeviotune; } - for (i = 0; i < QEMU_NB_BLOCK_IO_TUNE_PARAM && i < *nparams; i++) { + for (i = 0; i < QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX && i < *nparams; i++) { virTypedParameterPtr param = &params[i]; switch (i) { @@ -16106,13 +16204,61 @@ qemuDomainGetBlockIoTune(virDomainPtr dom, reply.write_iops_sec) < 0) goto endjob; break; + case 6: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + reply.total_bytes_sec_max) < 0) + goto endjob; + break; + case 7: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + reply.read_bytes_sec_max) < 0) + goto endjob; + break; + case 8: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + reply.write_bytes_sec_max) < 0) + goto endjob; + break; + case 9: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + reply.total_iops_sec_max) < 0) + goto endjob; + break; + case 10: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + reply.read_iops_sec_max) < 0) + goto endjob; + break; + case 11: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX, + VIR_TYPED_PARAM_ULLONG, + reply.write_iops_sec_max) < 0) + goto endjob; + break; + case 12: + if (virTypedParameterAssign(param, + VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC, + VIR_TYPED_PARAM_ULLONG, + reply.size_iops_sec) < 0) + goto endjob; default: break; } } - if (*nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM) - *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM; + if (*nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX) + *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX; ret = 0; endjob: