[PATCH 4/4] virnetdevbandwidthtest: Test QoS for OVS

Michal Privoznik mprivozn at redhat.com
Tue Jun 28 14:17:35 UTC 2022


Ever since v7.6.0-rc1~235 we can use ovs-vsctl to set QoS instead
of tc. However, we don't have a test that's verifying generated
cmd line for ovs-vsctl.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 tests/virnetdevbandwidthtest.c | 85 +++++++++++++++++++++++++++-------
 1 file changed, 69 insertions(+), 16 deletions(-)

diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
index 51e5ec016b..d5e4092fc3 100644
--- a/tests/virnetdevbandwidthtest.c
+++ b/tests/virnetdevbandwidthtest.c
@@ -22,13 +22,17 @@
 #define LIBVIRT_VIRCOMMANDPRIV_H_ALLOW
 #include "vircommandpriv.h"
 #include "virnetdevbandwidth.h"
+#include "virnetdevopenvswitch.h"
 #include "netdev_bandwidth_conf.c"
 
 #define VIR_FROM_THIS VIR_FROM_NONE
 
 struct testSetStruct {
     const char *band;
-    const char *exp_cmd;
+    const char *exp_cmd_tc;
+    const char *exp_cmd_ovs;
+    bool ovs;
+    const unsigned char *uuid;
     const char *iface;
     const bool hierarchical_class;
 };
@@ -59,6 +63,7 @@ testVirNetDevBandwidthSet(const void *data)
 {
     const struct testSetStruct *info = data;
     const char *iface = info->iface;
+    const char *exp_cmd = NULL;
     g_autoptr(virNetDevBandwidth) band = NULL;
     g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
     g_autofree char *actual_cmd = NULL;
@@ -72,17 +77,24 @@ testVirNetDevBandwidthSet(const void *data)
 
     virCommandSetDryRun(dryRunToken, &buf, false, false, NULL, NULL);
 
-    if (virNetDevBandwidthSet(iface, band, info->hierarchical_class, true) < 0)
-        return -1;
+    if (info->ovs) {
+        exp_cmd = info->exp_cmd_ovs;
+        if (virNetDevOpenvswitchInterfaceSetQos(iface, band, info->uuid, true) < 0)
+            return -1;
+    } else {
+        exp_cmd = info->exp_cmd_tc;
+        if (virNetDevBandwidthSet(iface, band, info->hierarchical_class, true) < 0)
+            return -1;
+    }
 
     if (!(actual_cmd = virBufferContentAndReset(&buf))) {
         /* This is interesting, no command has been executed.
          * Maybe that's expected, actually. */
     }
 
-    if (STRNEQ_NULLABLE(info->exp_cmd, actual_cmd)) {
+    if (STRNEQ_NULLABLE(exp_cmd, actual_cmd)) {
         virTestDifference(stderr,
-                          NULLSTR(info->exp_cmd),
+                          NULLSTR(exp_cmd),
                           NULLSTR(actual_cmd));
         return -1;
     }
@@ -94,22 +106,37 @@ static int
 mymain(void)
 {
     int ret = 0;
+    unsigned char uuid[VIR_UUID_BUFLEN] = { 0 };
 
-#define DO_TEST_SET(Band, Exp_cmd, ...) \
+#define VMUUID "c1018351-a229-4209-9faf-42446e0b53e5"
+
+    if (virUUIDParse(VMUUID, uuid) < 0)
+        return -1;
+
+#define DO_TEST_SET(Band, Exp_cmd_tc, Exp_cmd_ovs, ...) \
     do { \
         struct testSetStruct data = {.band = Band, \
-                                     .exp_cmd = Exp_cmd, \
+                                     .exp_cmd_tc = Exp_cmd_tc, \
+                                     .exp_cmd_ovs = Exp_cmd_ovs, \
+                                     .ovs = false, \
+                                     .uuid = uuid, \
                                      __VA_ARGS__}; \
-        if (virTestRun("virNetDevBandwidthSet", \
+        if (virTestRun("virNetDevBandwidthSet TC", \
                        testVirNetDevBandwidthSet, \
-                       &data) < 0) \
+                       &data) < 0) { \
             ret = -1; \
+        } \
+        data.ovs = true; \
+        if (virTestRun("virNetDevBandwidthSet OVS", \
+                       testVirNetDevBandwidthSet, \
+                       &data) < 0) { \
+            ret = -1; \
+        } \
     } while (0)
 
+    DO_TEST_SET(NULL, NULL, NULL);
 
-    DO_TEST_SET(NULL, NULL);
-
-    DO_TEST_SET("<bandwidth/>", NULL);
+    DO_TEST_SET("<bandwidth/>", NULL, NULL);
 
     DO_TEST_SET("<bandwidth>"
                 "  <inbound average='1024'/>"
@@ -119,7 +146,14 @@ mymain(void)
                 TC " qdisc add dev eth0 root handle 1: htb default 1\n"
                 TC " class add dev eth0 parent 1: classid 1:1 htb rate 1024kbps quantum 87\n"
                 TC " qdisc add dev eth0 parent 1:1 handle 2: sfq perturb 10\n"
-                TC " filter add dev eth0 parent 1:0 protocol all prio 1 handle 1 fw flowid 1\n");
+                TC " filter add dev eth0 parent 1:0 protocol all prio 1 handle 1 fw flowid 1\n",
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find queue 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find qos 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set port eth0 qos=@qos1 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"' --"
+                          " --id=@qos1 create qos type=linux-htb other_config:min-rate=8192000 queues:0=@queue0 'external-ids:vm-id=\"" VMUUID "\"'"
+                            " 'external-ids:ifname=\"eth0\"' --"
+                          " --id=@queue0 create queue other_config:min-rate=8192000 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set Interface eth0 ingress_policing_rate=0 ingress_policing_burst=0\n");
 
     DO_TEST_SET("<bandwidth>"
                 "  <outbound average='1024'/>"
@@ -128,7 +162,10 @@ mymain(void)
                 TC " qdisc del dev eth0 ingress\n"
                 TC " qdisc add dev eth0 ingress\n"
                 TC " filter add dev eth0 parent ffff: protocol all u32 match u32 0 0"
-                   " police rate 1024kbps burst 1024kb mtu 64kb drop flowid :1\n");
+                   " police rate 1024kbps burst 1024kb mtu 64kb drop flowid :1\n",
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find queue 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find qos 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set Interface eth0 ingress_policing_rate=8192\n");
 
     DO_TEST_SET("<bandwidth>"
                 "  <inbound average='1' peak='2' floor='3' burst='4'/>"
@@ -142,7 +179,15 @@ mymain(void)
                 TC " filter add dev eth0 parent 1:0 protocol all prio 1 handle 1 fw flowid 1\n"
                 TC " qdisc add dev eth0 ingress\n"
                 TC " filter add dev eth0 parent ffff: protocol all u32 match u32 0 0"
-                   " police rate 5kbps burst 7kb mtu 64kb drop flowid :1\n");
+                   " police rate 5kbps burst 7kb mtu 64kb drop flowid :1\n",
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find queue 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find qos 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set port eth0 qos=@qos1 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"' --"
+                          " --id=@qos1 create qos type=linux-htb other_config:min-rate=8000 other_config:burst=32768 other_config:max-rate=16000"
+                            " queues:0=@queue0 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"' --"
+                          " --id=@queue0 create queue other_config:min-rate=8000 other_config:burst=32768 other_config:max-rate=16000"
+                            " 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set Interface eth0 ingress_policing_rate=40 ingress_policing_burst=56\n");
 
     DO_TEST_SET("<bandwidth>"
                 "  <inbound average='4294967295'/>"
@@ -157,7 +202,15 @@ mymain(void)
                 TC " qdisc add dev eth0 ingress\n"
                 TC " filter add dev eth0 parent ffff: protocol all u32 match"
                    " u32 0 0 police rate 4294967295kbps burst 4194303kb mtu 64kb"
-                   " drop flowid :1\n");
+                   " drop flowid :1\n",
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find queue 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 --no-heading --columns=_uuid find qos 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set port eth0 qos=@qos1 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"' --"
+                          " --id=@qos1 create qos type=linux-htb other_config:min-rate=34359738360000"
+                            " queues:0=@queue0 'external-ids:vm-id=\"" VMUUID "\"' 'external-ids:ifname=\"eth0\"' --"
+                          " --id=@queue0 create queue other_config:min-rate=34359738360000 'external-ids:vm-id=\"" VMUUID "\"'"
+                            " 'external-ids:ifname=\"eth0\"'\n"
+                OVS_VSCTL " --timeout=5 set Interface eth0 ingress_policing_rate=34359738360\n");
 
     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }
-- 
2.35.1



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