[libvirt] [PATCH 6/7] QoS: Set classes and filters in proper direction
Michal Privoznik
mprivozn at redhat.com
Mon Oct 2 15:05:16 UTC 2017
Similarly to previous patch, for some types of interface domain
and host are on the same side of RX/TX barrier. In that case, we
need to set up the QoS differently. Well, swapped.
Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
src/lxc/lxc_driver.c | 3 ++-
src/lxc/lxc_process.c | 3 ++-
src/network/bridge_driver.c | 2 +-
src/qemu/qemu_command.c | 3 ++-
src/qemu/qemu_driver.c | 6 ++++--
src/qemu/qemu_hotplug.c | 6 ++++--
src/util/virnetdevbandwidth.c | 43 +++++++++++++++++++++++++++++-------------
src/util/virnetdevbandwidth.h | 3 ++-
tests/virnetdevbandwidthtest.c | 2 +-
9 files changed, 48 insertions(+), 23 deletions(-)
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index f0a22ce3e..6ad61bdb7 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -3981,7 +3981,8 @@ lxcDomainAttachDeviceNetLive(virConnectPtr conn,
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(actualType)) {
- if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false) < 0)
+ if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
+ !virDomainNetTypeSharesHostView(net)) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
index 05f1dec4c..efd8a6900 100644
--- a/src/lxc/lxc_process.c
+++ b/src/lxc/lxc_process.c
@@ -601,7 +601,8 @@ static int virLXCProcessSetupInterfaces(virConnectPtr conn,
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(type)) {
- if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false) < 0)
+ if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
+ !virDomainNetTypeSharesHostView(net)) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index e8d093a31..530d00ff3 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -2445,7 +2445,7 @@ networkStartNetworkVirtual(virNetworkDriverStatePtr driver,
VIR_FORCE_CLOSE(tapfd);
}
- if (virNetDevBandwidthSet(def->bridge, def->bandwidth, true) < 0)
+ if (virNetDevBandwidthSet(def->bridge, def->bandwidth, true, true) < 0)
goto err5;
VIR_FREE(macTapIfName);
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 4f141e0ac..4f89235e3 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -8567,7 +8567,8 @@ qemuBuildInterfaceCommandLine(virQEMUDriverPtr driver,
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(actualType)) {
- if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false) < 0)
+ if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
+ !virDomainNetTypeSharesHostView(net)) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a46409d70..898079dbc 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -11182,11 +11182,13 @@ qemuDomainSetInterfaceParameters(virDomainPtr dom,
if (!networkBandwidthChangeAllowed(net, newBandwidth))
goto endjob;
- if (virNetDevBandwidthSet(net->ifname, newBandwidth, false) < 0 ||
+ if (virNetDevBandwidthSet(net->ifname, newBandwidth, false,
+ !virDomainNetTypeSharesHostView(net)) < 0 ||
networkBandwidthUpdate(net, newBandwidth) < 0) {
ignore_value(virNetDevBandwidthSet(net->ifname,
net->bandwidth,
- false));
+ false,
+ !virDomainNetTypeSharesHostView(net)));
goto endjob;
}
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index b77731df0..2b9427df1 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1209,7 +1209,8 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(actualType)) {
- if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false) < 0)
+ if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false,
+ !virDomainNetTypeSharesHostView(net)) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
@@ -3362,7 +3363,8 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
if (needBandwidthSet) {
if (virNetDevBandwidthSet(newdev->ifname,
virDomainNetGetActualBandwidth(newdev),
- false) < 0)
+ false,
+ !virDomainNetTypeSharesHostView(newdev)) < 0)
goto cleanup;
needReplaceDevDef = true;
}
diff --git a/src/util/virnetdevbandwidth.c b/src/util/virnetdevbandwidth.c
index 4e4ac617b..9aebe56f4 100644
--- a/src/util/virnetdevbandwidth.c
+++ b/src/util/virnetdevbandwidth.c
@@ -174,6 +174,7 @@ virNetDevBandwidthManipulateFilter(const char *ifname,
* @ifname: on which interface
* @bandwidth: rates to set (may be NULL)
* @hierarchical_class: whether to create hierarchical class
+ * @swapped: true if IN/OUT should be set contrariwise
*
* This function enables QoS on specified interface
* and set given traffic limits for both, incoming
@@ -182,14 +183,23 @@ virNetDevBandwidthManipulateFilter(const char *ifname,
* hierarchical class. It is used to guarantee minimal
* throughput ('floor' attribute in NIC).
*
+ * If @swapped is set, the IN part of @bandwidth is set on
+ * @ifname's TX, and vice versa. If it is not set, IN is set on
+ * RX and OUT on TX. This is because for some types of interfaces
+ * domain and the host live on the same side of the interface (so
+ * domain's RX/TX is host's RX/TX), and for some it's swapped
+ * (domain's RX/TX is hosts's TX/RX).
+ *
* Return 0 on success, -1 otherwise.
*/
int
virNetDevBandwidthSet(const char *ifname,
virNetDevBandwidthPtr bandwidth,
- bool hierarchical_class)
+ bool hierarchical_class,
+ bool swapped)
{
int ret = -1;
+ virNetDevBandwidthRatePtr rx = NULL, tx = NULL; /* From domain POV */
virCommandPtr cmd = NULL;
char *average = NULL;
char *peak = NULL;
@@ -215,16 +225,24 @@ virNetDevBandwidthSet(const char *ifname,
return -1;
}
+ if (swapped) {
+ rx = bandwidth->out;
+ tx = bandwidth->in;
+ } else {
+ rx = bandwidth->in;
+ tx = bandwidth->out;
+ }
+
virNetDevBandwidthClear(ifname);
- if (bandwidth->in && bandwidth->in->average) {
- if (virAsprintf(&average, "%llukbps", bandwidth->in->average) < 0)
+ if (tx && tx->average) {
+ if (virAsprintf(&average, "%llukbps", tx->average) < 0)
goto cleanup;
- if (bandwidth->in->peak &&
- (virAsprintf(&peak, "%llukbps", bandwidth->in->peak) < 0))
+ if (tx->peak &&
+ (virAsprintf(&peak, "%llukbps", tx->peak) < 0))
goto cleanup;
- if (bandwidth->in->burst &&
- (virAsprintf(&burst, "%llukb", bandwidth->in->burst) < 0))
+ if (tx->burst &&
+ (virAsprintf(&burst, "%llukb", tx->burst) < 0))
goto cleanup;
cmd = virCommandNew(TC);
@@ -303,7 +321,7 @@ virNetDevBandwidthSet(const char *ifname,
virCommandAddArgList(cmd, "class", "add", "dev", ifname, "parent",
"1:", "classid", "1:1", "htb", "rate", average,
"ceil", peak ? peak : average, NULL);
- virNetDevBandwidthCmdAddOptimalQuantum(cmd, bandwidth->in);
+ virNetDevBandwidthCmdAddOptimalQuantum(cmd, tx);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
}
@@ -319,7 +337,7 @@ virNetDevBandwidthSet(const char *ifname,
if (burst)
virCommandAddArgList(cmd, "burst", burst, NULL);
- virNetDevBandwidthCmdAddOptimalQuantum(cmd, bandwidth->in);
+ virNetDevBandwidthCmdAddOptimalQuantum(cmd, tx);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
@@ -347,11 +365,10 @@ virNetDevBandwidthSet(const char *ifname,
VIR_FREE(burst);
}
- if (bandwidth->out) {
- if (virAsprintf(&average, "%llukbps", bandwidth->out->average) < 0)
+ if (rx) {
+ if (virAsprintf(&average, "%llukbps", rx->average) < 0)
goto cleanup;
- if (virAsprintf(&burst, "%llukb", bandwidth->out->burst ?
- bandwidth->out->burst : bandwidth->out->average) < 0)
+ if (virAsprintf(&burst, "%llukb", rx->burst ? rx->burst : rx->average) < 0)
goto cleanup;
virCommandFree(cmd);
diff --git a/src/util/virnetdevbandwidth.h b/src/util/virnetdevbandwidth.h
index 64f35372e..63ac60897 100644
--- a/src/util/virnetdevbandwidth.h
+++ b/src/util/virnetdevbandwidth.h
@@ -45,7 +45,8 @@ void virNetDevBandwidthFree(virNetDevBandwidthPtr def);
int virNetDevBandwidthSet(const char *ifname,
virNetDevBandwidthPtr bandwidth,
- bool hierarchical_class)
+ bool hierarchical_class,
+ bool swapped)
ATTRIBUTE_RETURN_CHECK;
int virNetDevBandwidthClear(const char *ifname);
int virNetDevBandwidthCopy(virNetDevBandwidthPtr *dest,
diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
index a8f4ab196..2b031d55e 100644
--- a/tests/virnetdevbandwidthtest.c
+++ b/tests/virnetdevbandwidthtest.c
@@ -81,7 +81,7 @@ testVirNetDevBandwidthSet(const void *data)
virCommandSetDryRun(&buf, NULL, NULL);
- if (virNetDevBandwidthSet(iface, band, info->hierarchical_class) < 0)
+ if (virNetDevBandwidthSet(iface, band, info->hierarchical_class, true) < 0)
goto cleanup;
if (!(actual_cmd = virBufferContentAndReset(&buf))) {
--
2.13.5
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