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I've noticed couple of warning in dmesg while debugging something: [ 9683.973754] HTB: quantum of class 10001 is big. Consider r2q change. [ 9683.976460] HTB: quantum of class 10002 is big. Consider r2q change. I've read the HTB documentation and linux kernel code to find out what's wrong. Basically we need to pass another argument "quantum" to our tc cmd line because the default computed by HTB does not always work in which case the warning message is printed out. You can read more details here: http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm#sharing Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
171 lines
6.5 KiB
C
171 lines
6.5 KiB
C
/*
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* Copyright (C) 2014 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Michal Privoznik <mprivozn@redhat.com>
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*/
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#include <config.h>
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#include "testutils.h"
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#define __VIR_COMMAND_PRIV_H_ALLOW__
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#include "vircommandpriv.h"
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#include "virnetdevbandwidth.h"
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#include "netdev_bandwidth_conf.c"
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#define VIR_FROM_THIS VIR_FROM_NONE
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struct testMinimalStruct {
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const char *expected_result;
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const char *band1;
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const char *band2;
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};
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struct testSetStruct {
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const char *band;
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const char *exp_cmd;
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const char *iface;
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const bool hierarchical_class;
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};
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#define PARSE(xml, var) \
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do { \
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int rc; \
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xmlDocPtr doc; \
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xmlXPathContextPtr ctxt = NULL; \
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\
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if (!xml) \
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break; \
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\
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if (!(doc = virXMLParseStringCtxt((xml), \
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"bandwidth definition", \
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&ctxt))) \
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goto cleanup; \
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\
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rc = virNetDevBandwidthParse(&(var), \
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ctxt->node, \
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VIR_DOMAIN_NET_TYPE_NETWORK); \
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xmlFreeDoc(doc); \
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xmlXPathFreeContext(ctxt); \
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if (rc < 0) \
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goto cleanup; \
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} while (0)
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static int
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testVirNetDevBandwidthSet(const void *data)
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{
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int ret = -1;
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const struct testSetStruct *info = data;
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const char *iface = info->iface;
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virNetDevBandwidthPtr band = NULL;
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virBuffer buf = VIR_BUFFER_INITIALIZER;
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char *actual_cmd = NULL;
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PARSE(info->band, band);
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if (!iface)
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iface = "eth0";
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virCommandSetDryRun(&buf, NULL, NULL);
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if (virNetDevBandwidthSet(iface, band, info->hierarchical_class) < 0)
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goto cleanup;
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if (!(actual_cmd = virBufferContentAndReset(&buf))) {
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int err = virBufferError(&buf);
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if (err) {
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fprintf(stderr, "buffer's in error state: %d", err);
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goto cleanup;
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}
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/* This is interesting, no command has been executed.
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* Maybe that's expected, actually. */
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}
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if (STRNEQ_NULLABLE(info->exp_cmd, actual_cmd)) {
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virtTestDifference(stderr,
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NULLSTR(info->exp_cmd),
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NULLSTR(actual_cmd));
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goto cleanup;
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}
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ret = 0;
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cleanup:
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virCommandSetDryRun(NULL, NULL, NULL);
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virNetDevBandwidthFree(band);
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virBufferFreeAndReset(&buf);
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VIR_FREE(actual_cmd);
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return ret;
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}
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static int
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mymain(void)
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{
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int ret = 0;
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#define DO_TEST_SET(Band, Exp_cmd, ...) \
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do { \
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struct testSetStruct data = {.band = Band, \
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.exp_cmd = Exp_cmd, \
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__VA_ARGS__}; \
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if (virtTestRun("virNetDevBandwidthSet", \
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testVirNetDevBandwidthSet, \
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&data) < 0) \
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ret = -1; \
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} while (0)
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DO_TEST_SET(NULL, NULL);
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DO_TEST_SET("<bandwidth/>", NULL);
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DO_TEST_SET(("<bandwidth>"
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" <inbound average='1024'/>"
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"</bandwidth>"),
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(TC " qdisc del dev eth0 root\n"
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TC " qdisc del dev eth0 ingress\n"
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TC " qdisc add dev eth0 root handle 1: htb default 1\n"
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TC " class add dev eth0 parent 1: classid 1:1 htb rate 1024kbps quantum 87\n"
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TC " qdisc add dev eth0 parent 1:1 handle 2: sfq perturb 10\n"
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TC " filter add dev eth0 parent 1:0 protocol all prio 1 handle 1 fw flowid 1\n"));
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DO_TEST_SET(("<bandwidth>"
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" <outbound average='1024'/>"
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"</bandwidth>"),
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(TC " qdisc del dev eth0 root\n"
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TC " qdisc del dev eth0 ingress\n"
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TC " qdisc add dev eth0 ingress\n"
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TC " filter add dev eth0 parent ffff: protocol all u32 match u32 0 0 "
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"police rate 1024kbps burst 1024kb mtu 64kb drop flowid :1\n"));
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DO_TEST_SET(("<bandwidth>"
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" <inbound average='1' peak='2' floor='3' burst='4'/>"
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" <outbound average='5' peak='6' burst='7'/>"
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"</bandwidth>"),
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(TC " qdisc del dev eth0 root\n"
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TC " qdisc del dev eth0 ingress\n"
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TC " qdisc add dev eth0 root handle 1: htb default 1\n"
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TC " class add dev eth0 parent 1: classid 1:1 htb rate 1kbps ceil 2kbps burst 4kb quantum 1\n"
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TC " qdisc add dev eth0 parent 1:1 handle 2: sfq perturb 10\n"
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TC " filter add dev eth0 parent 1:0 protocol all prio 1 handle 1 fw flowid 1\n"
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TC " qdisc add dev eth0 ingress\n"
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TC " filter add dev eth0 parent ffff: protocol all u32 match u32 0 0 "
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"police rate 5kbps burst 7kb mtu 64kb drop flowid :1\n"));
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return ret;
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}
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VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virnetdevbandwidthmock.so")
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