</variablelist>
</refsect1>
+ <refsect1>
+ <title>[GenericRandomEarlyDetection] Section Options</title>
+ <para>The <literal>[GenericRandomEarlyDetection]</literal> section manages the queueing discipline
+ (qdisc) of Generic Random Early Detection (GRED).</para>
+
+ <variablelist class='network-directives'>
+ <varlistentry>
+ <term><varname>Parent=</varname></term>
+ <listitem>
+ <para>Specifies the parent Queueing Discipline (qdisc). Takes one of <literal>root</literal>,
+ <literal>clsact</literal> or <literal>ingress</literal>. Defaults to <literal>root</literal>.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>Handle=</varname></term>
+ <listitem>
+ <para>Specifies the major number of unique identifier of the qdisc, known as the handle.
+ Takes a number in hexadecimal ranges 1 to ffff. Defaults to unset.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>VirtualQueues=</varname></term>
+ <listitem>
+ <para>Specifies the number of virtual queues. Takes a integer in the range 1-16. Defaults to unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>DefaultVirtualQueue=</varname></term>
+ <listitem>
+ <para>Specifies the number of default virtual queue. This must be less than <varname>VirtualQueue=</varname>.
+ Defaults to unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>GenericRIO=</varname></term>
+ <listitem>
+ <para>Takes a boolean. It turns on the RIO-like buffering scheme. Defaults to
+ unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
<refsect1>
<title>[FairQueueingControlledDelay] Section Options</title>
<para>The <literal>[FairQueueingControlledDelay]</literal> section manages the queueing discipline
[TCA_FQ_CODEL_MEMORY_LIMIT] = { .type = NETLINK_TYPE_U32 },
};
+static const NLType rtnl_tca_option_data_gred_types[] = {
+ [TCA_GRED_DPS] = { .size = sizeof(struct tc_gred_sopt) },
+};
+
static const NLType rtnl_tca_option_data_htb_types[] = {
[TCA_HTB_PARMS] = { .size = sizeof(struct tc_htb_opt) },
[TCA_HTB_INIT] = { .size = sizeof(struct tc_htb_glob) },
[NL_UNION_TCA_OPTION_DATA_CODEL] = "codel",
[NL_UNION_TCA_OPTION_DATA_FQ] = "fq",
[NL_UNION_TCA_OPTION_DATA_FQ_CODEL] = "fq_codel",
+ [NL_UNION_TCA_OPTION_DATA_GRED] = "gred",
[NL_UNION_TCA_OPTION_DATA_HTB] = "htb",
[NL_UNION_TCA_OPTION_DATA_TBF] = "tbf",
};
.types = rtnl_tca_option_data_fq_types },
[NL_UNION_TCA_OPTION_DATA_FQ_CODEL] = { .count = ELEMENTSOF(rtnl_tca_option_data_fq_codel_types),
.types = rtnl_tca_option_data_fq_codel_types },
+ [NL_UNION_TCA_OPTION_DATA_GRED] = { .count = ELEMENTSOF(rtnl_tca_option_data_gred_types),
+ .types = rtnl_tca_option_data_gred_types },
[NL_UNION_TCA_OPTION_DATA_HTB] = { .count = ELEMENTSOF(rtnl_tca_option_data_htb_types),
.types = rtnl_tca_option_data_htb_types },
[NL_UNION_TCA_OPTION_DATA_TBF] = { .count = ELEMENTSOF(rtnl_tca_option_data_tbf_types),
NL_UNION_TCA_OPTION_DATA_CODEL,
NL_UNION_TCA_OPTION_DATA_FQ,
NL_UNION_TCA_OPTION_DATA_FQ_CODEL,
+ NL_UNION_TCA_OPTION_DATA_GRED,
NL_UNION_TCA_OPTION_DATA_HTB,
NL_UNION_TCA_OPTION_DATA_TBF,
_NL_UNION_TCA_OPTION_DATA_MAX,
tc/fq.h
tc/fq-codel.c
tc/fq-codel.h
+ tc/gred.c
+ tc/gred.h
tc/htb.c
tc/htb.h
tc/netem.c
FairQueueingControlledDelay.IntervalSec, config_parse_fair_queueing_controlled_delay_usec, QDISC_KIND_FQ_CODEL, 0
FairQueueingControlledDelay.CEThresholdSec, config_parse_fair_queueing_controlled_delay_usec, QDISC_KIND_FQ_CODEL, 0
FairQueueingControlledDelay.ECN, config_parse_fair_queueing_controlled_delay_bool, QDISC_KIND_FQ_CODEL, 0
+GenericRandomEarlyDetection.Parent, config_parse_qdisc_parent, QDISC_KIND_GRED, 0
+GenericRandomEarlyDetection.Handle, config_parse_qdisc_handle, QDISC_KIND_GRED, 0
+GenericRandomEarlyDetection.VirtualQueues, config_parse_generic_random_early_detection_u32, QDISC_KIND_GRED, 0
+GenericRandomEarlyDetection.DefaultVirtualQueue, config_parse_generic_random_early_detection_u32, QDISC_KIND_GRED, 0
+GenericRandomEarlyDetection.GenericRIO, config_parse_generic_random_early_detection_bool, QDISC_KIND_GRED, 0
HierarchyTokenBucket.Parent, config_parse_qdisc_parent, QDISC_KIND_HTB, 0
HierarchyTokenBucket.Handle, config_parse_qdisc_handle, QDISC_KIND_HTB, 0
HierarchyTokenBucket.DefaultClass, config_parse_hierarchy_token_bucket_default_class, QDISC_KIND_HTB, 0
"PFIFO\0"
"FairQueueing\0"
"FairQueueingControlledDelay\0"
+ "GenericRandomEarlyDetection\0"
"HierarchyTokenBucket\0"
"HierarchyTokenBucketClass\0"
"NetworkEmulator\0"
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+
+ * Copyright © 2020 VMware, Inc. */
+
+#include <linux/pkt_sched.h>
+
+#include "alloc-util.h"
+#include "conf-parser.h"
+#include "netlink-util.h"
+#include "parse-util.h"
+#include "qdisc.h"
+#include "string-util.h"
+
+static int generic_random_early_detection_init(QDisc *qdisc) {
+ GenericRandomEarlyDetection *gred;
+
+ assert(qdisc);
+
+ gred = GRED(qdisc);
+
+ gred->grio = -1;
+
+ return 0;
+}
+
+static int generic_random_early_detection_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
+ GenericRandomEarlyDetection *gred;
+ struct tc_gred_sopt opt = {};
+ int r;
+
+ assert(link);
+ assert(qdisc);
+ assert(req);
+
+ gred = GRED(qdisc);
+
+ opt.DPs = gred->virtual_queues;
+ opt.def_DP = gred->default_virtual_queue;
+
+ if (gred->grio >= 0)
+ opt.grio = gred->grio;
+
+ r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "gred");
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m");
+
+ r = sd_netlink_message_append_data(req, TCA_GRED_DPS, &opt, sizeof(struct tc_gred_sopt));
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_GRED_DPS attribute: %m");
+
+ r = sd_netlink_message_close_container(req);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m");
+
+ return 0;
+}
+
+static int generic_random_early_detection_verify(QDisc *qdisc) {
+ GenericRandomEarlyDetection *gred = GRED(qdisc);
+
+ if (gred->default_virtual_queue >= gred->virtual_queues)
+ return log_warning_errno(SYNTHETIC_ERRNO(EINVAL),
+ "%s: DefaultVirtualQueue= must be less than VirtualQueues=. "
+ "Ignoring [GenericRandomEarlyDetection] section from line %u.",
+ qdisc->section->filename, qdisc->section->line);
+
+ return 0;
+}
+
+int config_parse_generic_random_early_detection_u32(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
+ GenericRandomEarlyDetection *gred;
+ Network *network = data;
+ uint32_t *p;
+ uint32_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = qdisc_new_static(QDISC_KIND_GRED, network, filename, section_line, &qdisc);
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0)
+ return log_syntax(unit, LOG_ERR, filename, line, r,
+ "More than one kind of queueing discipline, ignoring assignment: %m");
+
+ gred = GRED(qdisc);
+
+ if (streq(lvalue, "VirtualQueues"))
+ p = &gred->virtual_queues;
+ else if (streq(lvalue, "DefaultVirtualQueue"))
+ p = &gred->default_virtual_queue;
+ else
+ assert_not_reached("Invalid lvalue.");
+
+ if (isempty(rvalue)) {
+ *p = 0;
+
+ qdisc = NULL;
+ return 0;
+ }
+
+ r = safe_atou32(rvalue, &v);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ if (v > MAX_DPs) {
+ log_syntax(unit, LOG_ERR, filename, line, 0,
+ "Invalid '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ }
+
+ *p = v;
+ qdisc = NULL;
+
+ return 0;
+}
+int config_parse_generic_random_early_detection_bool(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
+ GenericRandomEarlyDetection *gred;
+ Network *network = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = qdisc_new_static(QDISC_KIND_GRED, network, filename, section_line, &qdisc);
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0)
+ return log_syntax(unit, LOG_ERR, filename, line, r,
+ "More than one kind of queueing discipline, ignoring assignment: %m");
+
+ gred = GRED(qdisc);
+
+ if (isempty(rvalue)) {
+ gred->grio = -1;
+
+ qdisc = NULL;
+ return 0;
+ }
+
+ r = parse_boolean(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ gred->grio = r;
+ qdisc = NULL;
+
+ return 0;
+}
+
+const QDiscVTable gred_vtable = {
+ .object_size = sizeof(GenericRandomEarlyDetection),
+ .tca_kind = "gred",
+ .init = generic_random_early_detection_init,
+ .fill_message = generic_random_early_detection_fill_message,
+ .verify = generic_random_early_detection_verify,
+};
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+
+ * Copyright © 2020 VMware, Inc. */
+#pragma once
+
+#include "conf-parser.h"
+#include "qdisc.h"
+
+typedef struct GenericRandomEarlyDetection {
+ QDisc meta;
+
+ uint32_t virtual_queues;
+ uint32_t default_virtual_queue;
+ int grio;
+} GenericRandomEarlyDetection;
+
+DEFINE_QDISC_CAST(GRED, GenericRandomEarlyDetection);
+extern const QDiscVTable gred_vtable;
+
+CONFIG_PARSER_PROTOTYPE(config_parse_generic_random_early_detection_u32);
+CONFIG_PARSER_PROTOTYPE(config_parse_generic_random_early_detection_bool);
[QDISC_KIND_CODEL] = &codel_vtable,
[QDISC_KIND_FQ] = &fq_vtable,
[QDISC_KIND_FQ_CODEL] = &fq_codel_vtable,
+ [QDISC_KIND_GRED] = &gred_vtable,
[QDISC_KIND_HTB] = &htb_vtable,
[QDISC_KIND_NETEM] = &netem_vtable,
[QDISC_KIND_PFIFO] = &pfifo_vtable,
QDISC_KIND_CODEL,
QDISC_KIND_FQ,
QDISC_KIND_FQ_CODEL,
+ QDISC_KIND_GRED,
QDISC_KIND_HTB,
QDISC_KIND_NETEM,
QDISC_KIND_PFIFO,
#include "fifo.h"
#include "fq-codel.h"
#include "fq.h"
+#include "gred.h"
#include "htb.h"
#include "netem.h"
#include "sfq.h"
Parent=
Handle=
PacketLimit=
+[GenericRandomEarlyDetection]
+Parent=
+Handle=
+VirtualQueues=
+DefaultVirtualQueue=
+GenericRIO=
projects / thirdparty / systemd.git / commitdiff
