109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later
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* Copyright © 2020 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 "sfb.h"
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#include "string-util.h"
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static int stochastic_fair_blue_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) {
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StochasticFairBlue *sfb;
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struct tc_sfb_qopt opt = {
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.rehash_interval = 600*1000,
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.warmup_time = 60*1000,
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.penalty_rate = 10,
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.penalty_burst = 20,
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.increment = (SFB_MAX_PROB + 1000) / 2000,
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.decrement = (SFB_MAX_PROB + 10000) / 20000,
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.max = 25,
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.bin_size = 20,
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};
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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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sfb = SFB(qdisc);
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opt.limit = sfb->packet_limit;
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r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "sfb");
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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_SFB_PARMS, &opt, sizeof(struct tc_sfb_qopt));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_SFB_PARMS 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_stochastic_fair_blue_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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StochasticFairBlue *sfb;
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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_SFB, 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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sfb = SFB(qdisc);
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if (isempty(rvalue)) {
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sfb->packet_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, &sfb->packet_limit);
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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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const QDiscVTable sfb_vtable = {
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.object_size = sizeof(StochasticFairBlue),
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.tca_kind = "sfb",
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.fill_message = stochastic_fair_blue_fill_message,
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};
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