</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>ControlledDelayTargetSec=</varname></term>
+ <listitem>
+ <para>Takes a timespan. Specifies the acceptable minimum standing/persistent queue delay.
+ Defaults to unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>ControlledDelayIntervalSec=</varname></term>
+ <listitem>
+ <para>Takes a timespan. This is used to ensure that the measured minimum delay does not
+ become too stale. Defaults to unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>ControlledDelayECN=</varname></term>
+ <listitem>
+ <para>Takes a boolean. This can be used to mark packets instead of dropping them. Defaults to
+ unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>ControlledDelayCEThresholdSec=</varname></term>
+ <listitem>
+ <para>Takes a timespan. This sets a threshold above which all packets are marked with ECN
+ Congestion Experienced (CE). Defaults to unset and kernel's default is used.</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><varname>FairQueuingControlledDelayPacketLimit=</varname></term>
<listitem>
TrafficControlQueueingDiscipline.FairQueueTrafficPolicingPacing, config_parse_tc_fair_queue_traffic_policing_bool, 0, 0
TrafficControlQueueingDiscipline.FairQueueTrafficPolicingCEThresholdSec, config_parse_tc_fair_queue_traffic_policing_usec, 0, 0
TrafficControlQueueingDiscipline.ControlledDelayPacketLimit, config_parse_tc_controlled_delay_u32, 0, 0
+TrafficControlQueueingDiscipline.ControlledDelayTargetSec, config_parse_tc_controlled_delay_usec, 0, 0
+TrafficControlQueueingDiscipline.ControlledDelayIntervalSec, config_parse_tc_controlled_delay_usec, 0, 0
+TrafficControlQueueingDiscipline.ControlledDelayCEThresholdSec, config_parse_tc_controlled_delay_usec, 0, 0
+TrafficControlQueueingDiscipline.ControlledDelayECN, config_parse_tc_controlled_delay_bool, 0, 0
/* backwards compatibility: do not add new entries to this section */
Network.IPv4LL, config_parse_ipv4ll, 0, offsetof(Network, link_local)
DHCP.ClientIdentifier, config_parse_dhcp_client_identifier, 0, offsetof(Network, dhcp_client_identifier)
#include "qdisc.h"
#include "string-util.h"
+static int controlled_delay_init(QDisc *qdisc) {
+ ControlledDelay *cd;
+
+ assert(qdisc);
+
+ cd = CODEL(qdisc);
+
+ cd->ce_threshold_usec = USEC_INFINITY;
+ cd->ecn = -1;
+
+ return 0;
+}
+
static int controlled_delay_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
ControlledDelay *cd;
int r;
return log_link_error_errno(link, r, "Could not append TCA_CODEL_LIMIT attribute: %m");
}
+ if (cd->interval_usec > 0) {
+ r = sd_netlink_message_append_u32(req, TCA_CODEL_INTERVAL, cd->interval_usec);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_CODEL_INTERVAL attribute: %m");
+ }
+
+ if (cd->target_usec > 0) {
+ r = sd_netlink_message_append_u32(req, TCA_CODEL_TARGET, cd->target_usec);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_CODEL_TARGET attribute: %m");
+ }
+
+ if (cd->ecn >= 0) {
+ r = sd_netlink_message_append_u32(req, TCA_CODEL_ECN, cd->ecn);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_CODEL_ECN attribute: %m");
+ }
+
+ if (cd->ce_threshold_usec != USEC_INFINITY) {
+ r = sd_netlink_message_append_u32(req, TCA_CODEL_CE_THRESHOLD, cd->ce_threshold_usec);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append TCA_CODEL_CE_THRESHOLD 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;
}
+int config_parse_tc_controlled_delay_usec(
+ 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;
+ ControlledDelay *cd;
+ Network *network = data;
+ usec_t *p;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = qdisc_new_static(QDISC_KIND_CODEL, 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");
+
+ cd = CODEL(qdisc);
+
+ if (streq(lvalue, "ControlledDelayTargetSec"))
+ p = &cd->target_usec;
+ else if (streq(lvalue, "ControlledDelayIntervalSec"))
+ p = &cd->interval_usec;
+ else if (streq(lvalue, "ControlledDelayCEThresholdSec"))
+ p = &cd->ce_threshold_usec;
+ else
+ assert_not_reached("Invalid lvalue");
+
+ if (isempty(rvalue)) {
+ if (streq(lvalue, "ControlledDelayCEThresholdSec"))
+ *p = USEC_INFINITY;
+ else
+ *p = 0;
+
+ qdisc = NULL;
+ return 0;
+ }
+
+ r = parse_sec(rvalue, p);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ qdisc = NULL;
+
+ return 0;
+}
+
+int config_parse_tc_controlled_delay_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;
+ ControlledDelay *cd;
+ Network *network = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = qdisc_new_static(QDISC_KIND_CODEL, 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");
+
+ cd = CODEL(qdisc);
+
+ if (isempty(rvalue)) {
+ cd->ecn = -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;
+ }
+
+ cd->ecn = r;
+ qdisc = NULL;
+
+ return 0;
+}
+
const QDiscVTable codel_vtable = {
.object_size = sizeof(ControlledDelay),
.tca_kind = "codel",
+ .init = controlled_delay_init,
.fill_message = controlled_delay_fill_message,
};
projects / thirdparty / systemd.git / commitdiff
