421 lines
13 KiB
C
421 lines
13 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later
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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 "fq.h"
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#include "netlink-util.h"
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#include "parse-util.h"
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#include "string-util.h"
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#include "strv.h"
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static int fair_queueing_init(QDisc *qdisc) {
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FairQueueing *fq;
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assert(qdisc);
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fq = FQ(qdisc);
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fq->pacing = -1;
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fq->ce_threshold_usec = USEC_INFINITY;
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return 0;
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}
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static int fair_queueing_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
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FairQueueing *fq;
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int r;
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assert(link);
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assert(qdisc);
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assert(req);
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fq = FQ(qdisc);
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r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "fq");
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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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if (fq->packet_limit > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_PLIMIT, fq->packet_limit);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_PLIMIT attribute: %m");
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}
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if (fq->flow_limit > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_FLOW_PLIMIT, fq->flow_limit);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_FLOW_PLIMIT attribute: %m");
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}
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if (fq->quantum > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_QUANTUM, fq->quantum);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_QUANTUM attribute: %m");
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}
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if (fq->initial_quantum > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_INITIAL_QUANTUM, fq->initial_quantum);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_INITIAL_QUANTUM attribute: %m");
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}
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if (fq->pacing >= 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_RATE_ENABLE, fq->pacing);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_RATE_ENABLE attribute: %m");
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}
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if (fq->max_rate > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_FLOW_MAX_RATE, fq->max_rate);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_FLOW_MAX_RATE attribute: %m");
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}
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if (fq->buckets > 0) {
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uint32_t l;
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l = log2u(fq->buckets);
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r = sd_netlink_message_append_u32(req, TCA_FQ_BUCKETS_LOG, l);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_BUCKETS_LOG attribute: %m");
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}
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if (fq->orphan_mask > 0) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_ORPHAN_MASK, fq->orphan_mask);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_ORPHAN_MASK attribute: %m");
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}
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if (fq->ce_threshold_usec != USEC_INFINITY) {
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r = sd_netlink_message_append_u32(req, TCA_FQ_CE_THRESHOLD, fq->ce_threshold_usec);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_FQ_CE_THRESHOLD attribute: %m");
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}
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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_fair_queueing_u32(
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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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FairQueueing *fq;
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Network *network = data;
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uint32_t *p;
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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(QDISC_KIND_FQ, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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return 0;
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}
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fq = FQ(qdisc);
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if (streq(lvalue, "PacketLimit"))
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p = &fq->packet_limit;
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else if (streq(lvalue, "FlowLimit"))
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p = &fq->flow_limit;
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else if (streq(lvalue, "Buckets"))
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p = &fq->buckets;
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else if (streq(lvalue, "OrphanMask"))
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p = &fq->orphan_mask;
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else
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assert_not_reached("Invalid lvalue");
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if (isempty(rvalue)) {
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*p = 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, p);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, 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 = NULL;
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return 0;
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}
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int config_parse_fair_queueing_size(
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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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FairQueueing *fq;
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Network *network = data;
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uint64_t sz;
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uint32_t *p;
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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(QDISC_KIND_FQ, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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return 0;
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}
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fq = FQ(qdisc);
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if (STR_IN_SET(lvalue, "QuantumBytes", "Quantum"))
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p = &fq->quantum;
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else if (STR_IN_SET(lvalue, "InitialQuantumBytes", "InitialQuantum"))
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p = &fq->initial_quantum;
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else
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assert_not_reached("Invalid lvalue");
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if (isempty(rvalue)) {
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*p = 0;
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qdisc = NULL;
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return 0;
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}
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r = parse_size(rvalue, 1024, &sz);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, 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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if (sz > UINT32_MAX) {
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log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Specified '%s=' is too large, ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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*p = sz;
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qdisc = NULL;
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return 0;
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}
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int config_parse_fair_queueing_bool(
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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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FairQueueing *fq;
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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(QDISC_KIND_FQ, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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return 0;
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}
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fq = FQ(qdisc);
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if (isempty(rvalue)) {
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fq->pacing = -1;
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qdisc = NULL;
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return 0;
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}
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r = parse_boolean(rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, 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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fq->pacing = r;
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qdisc = NULL;
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return 0;
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}
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int config_parse_fair_queueing_usec(
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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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FairQueueing *fq;
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Network *network = data;
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usec_t sec;
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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(QDISC_KIND_FQ, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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return 0;
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}
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fq = FQ(qdisc);
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if (isempty(rvalue)) {
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fq->ce_threshold_usec = USEC_INFINITY;
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qdisc = NULL;
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return 0;
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}
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r = parse_sec(rvalue, &sec);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, 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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if (sec > UINT32_MAX) {
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log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Specified '%s=' is too large, ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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fq->ce_threshold_usec = sec;
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qdisc = NULL;
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return 0;
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}
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int config_parse_fair_queueing_max_rate(
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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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FairQueueing *fq;
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Network *network = data;
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uint64_t sz;
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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(QDISC_KIND_FQ, network, filename, section_line, &qdisc);
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if (r == -ENOMEM)
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return log_oom();
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"More than one kind of queueing discipline, ignoring assignment: %m");
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return 0;
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}
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fq = FQ(qdisc);
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if (isempty(rvalue)) {
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fq->max_rate = 0;
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qdisc = NULL;
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return 0;
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}
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r = parse_size(rvalue, 1000, &sz);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, 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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if (sz / 8 > UINT32_MAX) {
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log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Specified '%s=' is too large, ignoring assignment: %s",
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lvalue, rvalue);
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return 0;
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}
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fq->max_rate = sz / 8;
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qdisc = NULL;
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return 0;
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}
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const QDiscVTable fq_vtable = {
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.init = fair_queueing_init,
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.object_size = sizeof(FairQueueing),
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.tca_kind = "fq",
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.fill_message = fair_queueing_fill_message,
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};
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