On 30.09.2014 16:09, Matthias Gatto wrote:
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@xxxxxxxxxxxx>
---
include/libvirt/libvirt.h.in | 56 +++++++++++++
src/qemu/qemu_driver.c | 181 +++++++++++++++++++++++++++++++++++++++++--
src/qemu/qemu_monitor.c | 10 ++-
src/qemu/qemu_monitor.h | 6 +-
src/qemu/qemu_monitor_json.c | 13 +++-
src/qemu/qemu_monitor_json.h | 6 +-
tests/qemumonitorjsontest.c | 4 +-
7 files changed, 256 insertions(+), 20 deletions(-)
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 4eab987..acaca54 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -5373,6 +5373,62 @@ typedef void (*virConnectDomainEventDeviceRemovedCallback)(virConnectPtr conn,
#define VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC "blkdeviotune.write_iops_sec"
/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX:
+ *
+ * Marco represents the total throughput limit in maximum bytes per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX "blkdeviotune.total_bytes_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX:
+ *
+ * Marco represents the read throughput limit in maximum bytes per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX "blkdeviotune.read_bytes_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX:
+ *
+ * Macro represents the write throughput limit in maximum bytes per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX "blkdeviotune.write_bytes_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX:
+ *
+ * Macro represents the total maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX "blkdeviotune.total_iops_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX:
+ *
+ * Macro represents the read maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX "blkdeviotune.read_iops_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX:
+ *
+ * Macro represents the write maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX "blkdeviotune.write_iops_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC:
+ *
+ * Macro represents the size maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC "blkdeviotune.size_iops_sec"
+
+/**
* virConnectDomainEventTunableCallback:
* @conn: connection object
* @dom: domain on which the event occurred
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 6606154..94cfa58 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -105,6 +105,7 @@ 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
Okay, so this makes a little bit more sense now. If we are talking to
newer qemu so that _max attributes are supported, we ought to return 13,
and return 6 otherwise.
#define QEMU_NB_NUMA_PARAM 2
@@ -16273,6 +16274,9 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
int conf_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;
virObjectEventPtr event = NULL;
@@ -16295,6 +16299,20 @@ 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;
@@ -16387,6 +16405,69 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC,
param->value.ul) < 0)
goto endjob;
+ } 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;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX,
+ param->value.ul) < 0)
+ goto endjob;
+ } 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;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX,
+ param->value.ul) < 0)
+ goto endjob;
+ } 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;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX,
+ param->value.ul) < 0)
+ goto endjob;
+ } 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;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX,
+ param->value.ul) < 0)
+ goto endjob;
+ } 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;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX,
+ param->value.ul) < 0)
+ goto endjob;
+ } 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;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX,
+ param->value.ul) < 0)
+ goto endjob;
+ } else if (STREQ(param->field,
+ VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC)) {
+ info.size_iops_sec = param->value.ul;
+ set_size_iops = true;
+ if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+ &eventMaxparams,
+ VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC,
+ param->value.ul) < 0)
+ goto endjob;
}
}
@@ -16404,6 +16485,20 @@ 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_CONFIG) {
if ((conf_idx = virDomainDiskIndexByName(persistentDef, disk, true)) < 0) {
virReportError(VIR_ERR_INVALID_ARG,
@@ -16421,6 +16516,13 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
goto endjob;
}
+ if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX) && (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;
+ }
+
if (!(device = qemuDiskPathToAlias(vm, disk, &idx)))
goto endjob;
@@ -16433,13 +16535,25 @@ 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);
+ ret = qemuMonitorSetBlockIoThrottle(priv->mon, device, &info, virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX));
The last argument should be rather turned into a variable - like you're
doing later in the patch.
qemuDomainObjExitMonitor(driver, vm);
if (ret < 0)
goto endjob;
@@ -16483,6 +16597,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
}
endjob:
+
if (!qemuDomainObjEndJob(driver, vm))
vm = NULL;
@@ -16513,6 +16628,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
int ret = -1;
size_t i;
virCapsPtr caps = NULL;
+ bool supportMaxOptions = true;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
@@ -16531,8 +16647,8 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
goto cleanup;
if ((*nparams) == 0) {
- /* Current number of parameters supported by QEMU Block I/O Throttling */
- *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM;
+ /* Current number of parameters supported by QEMU Block I/O Throttling including the optionals parameters */
+ *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX;
So this should rather be *nparams = supportMaxOptions ?
QEMU_.._PARAM_MAX : QEMU_.._PARAM;
And also the long lines should be capped.
ret = 0;
goto cleanup;
}
@@ -16551,8 +16667,11 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
priv = vm->privateData;
+ supportMaxOptions = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX);
and this check should be moved before first supportMaxOptions usage.
+ if (!supportMaxOptions)
+ *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM;
qemuDomainObjEnterMonitor(driver, vm);
- ret = qemuMonitorGetBlockIoThrottle(priv->mon, device, &reply);
+ ret = qemuMonitorGetBlockIoThrottle(priv->mon, device, &reply, supportMaxOptions);
qemuDomainObjExitMonitor(driver, vm);
if (ret < 0)
goto endjob;
@@ -16569,7 +16688,7 @@ 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 = ¶ms[i];
switch (i) {
@@ -16615,14 +16734,64 @@ 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;
/* coverity[dead_error_begin] */
default:
break;
}
}
- if (*nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM)
+ if (!supportMaxOptions && *nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM)
*nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM;
+ else if (*nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX)
+ *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX;
ret = 0;
endjob:
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index c25f002..b57a0d8 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3416,14 +3416,15 @@ qemuMonitorBlockJobInfo(qemuMonitorPtr mon,
int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
const char *device,
- virDomainBlockIoTuneInfoPtr info)
+ virDomainBlockIoTuneInfoPtr info,
+ bool supportMaxOptions)
{
int ret;
VIR_DEBUG("mon=%p, device=%p, info=%p", mon, device, info);
if (mon->json) {
- ret = qemuMonitorJSONSetBlockIoThrottle(mon, device, info);
+ ret = qemuMonitorJSONSetBlockIoThrottle(mon, device, info, supportMaxOptions);
} else {
ret = qemuMonitorTextSetBlockIoThrottle(mon, device, info);
}
@@ -3432,14 +3433,15 @@ int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
int qemuMonitorGetBlockIoThrottle(qemuMonitorPtr mon,
const char *device,
- virDomainBlockIoTuneInfoPtr reply)
+ virDomainBlockIoTuneInfoPtr reply,
+ bool supportMaxOptions)
{
int ret;
VIR_DEBUG("mon=%p, device=%p, reply=%p", mon, device, reply);
if (mon->json) {
- ret = qemuMonitorJSONGetBlockIoThrottle(mon, device, reply);
+ ret = qemuMonitorJSONGetBlockIoThrottle(mon, device, reply, supportMaxOptions);
} else {
ret = qemuMonitorTextGetBlockIoThrottle(mon, device, reply);
}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 6b91e29..ef7719d 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -747,11 +747,13 @@ int qemuMonitorOpenGraphics(qemuMonitorPtr mon,
int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
const char *device,
- virDomainBlockIoTuneInfoPtr info);
+ virDomainBlockIoTuneInfoPtr info,
+ bool supportMaxOptions);
int qemuMonitorGetBlockIoThrottle(qemuMonitorPtr mon,
const char *device,
- virDomainBlockIoTuneInfoPtr reply);
+ virDomainBlockIoTuneInfoPtr reply,
+ bool supportMaxOptions);
int qemuMonitorSystemWakeup(qemuMonitorPtr mon);
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index a3d7c2c..a8759dd 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4042,13 +4042,15 @@ int qemuMonitorJSONOpenGraphics(qemuMonitorPtr mon,
static int
qemuMonitorJSONBlockIoThrottleInfo(virJSONValuePtr result,
const char *device,
- virDomainBlockIoTuneInfoPtr reply)
+ virDomainBlockIoTuneInfoPtr reply,
+ bool supportMaxOptions)
{
virJSONValuePtr io_throttle;
int ret = -1;
size_t i;
bool found = false;
+ (void)supportMaxOptions;
We have the ATTRIBUTE_UNUSED for this.
io_throttle = virJSONValueObjectGet(result, "return");
if (!io_throttle || io_throttle->type != VIR_JSON_TYPE_ARRAY) {
@@ -4113,12 +4115,14 @@ qemuMonitorJSONBlockIoThrottleInfo(virJSONValuePtr result,
int qemuMonitorJSONSetBlockIoThrottle(qemuMonitorPtr mon,
const char *device,
- virDomainBlockIoTuneInfoPtr info)
+ virDomainBlockIoTuneInfoPtr info,
+ bool supportMaxOptions)
{
int ret = -1;
virJSONValuePtr cmd = NULL;
virJSONValuePtr result = NULL;
+ (void)supportMaxOptions;
And here as well.
Michal
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