4e5ef14919
``` $ tc qdisc show dev dummy99 qdisc fq_codel 8005: dev dummy99 root refcnt 2 limit 1000p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn $ network cat dumm99.network [Match] Name=dummy99 [TrafficControlQueueingDiscipline] Parent=root FairQueuingControlledDelayPacketLimit=1000 ```
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+
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* Copyright © 2019 VMware, Inc. */
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#include <linux/pkt_sched.h>
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#include "alloc-util.h"
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#include "conf-parser.h"
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#include "netlink-util.h"
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#include "parse-util.h"
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#include "qdisc.h"
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#include "string-util.h"
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int fair_queuing_controlled_delay_new(FairQueuingControlledDelay **ret) {
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FairQueuingControlledDelay *fqcd = NULL;
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fqcd = new0(FairQueuingControlledDelay, 1);
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if (!fqcd)
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return -ENOMEM;
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*ret = TAKE_PTR(fqcd);
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return 0;
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}
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int fair_queuing_controlled_delay_fill_message(Link *link, const FairQueuingControlledDelay *fqcd, sd_netlink_message *req) {
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int r;
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assert(link);
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assert(fqcd);
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assert(req);
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r = sd_netlink_message_open_array(req, TCA_OPTIONS);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m");
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r = sd_netlink_message_append_data(req, TCA_FQ_CODEL_LIMIT, &fqcd->limit, sizeof(fqcd->limit));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CODEL_LIMIT attribute: %m");
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m");
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return 0;
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}
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int config_parse_tc_fair_queuing_controlled_delay_limit(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL;
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Network *network = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = qdisc_new_static(network, filename, section_line, &qdisc);
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if (r < 0)
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return r;
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if (isempty(rvalue)) {
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qdisc->fq_codel.limit = 0;
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qdisc = NULL;
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return 0;
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}
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r = safe_atou32(rvalue, &qdisc->fq_codel.limit);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"Failed to parse '%s=', ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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qdisc->has_fair_queuing_controlled_delay = true;
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qdisc = NULL;
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return 0;
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}
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