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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/network/tc/fq-codel.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/network/tc/fq-codel.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/src/network/tc/fq-codel.c b/src/network/tc/fq-codel.c new file mode 100644 index 0000000..50ec203 --- /dev/null +++ b/src/network/tc/fq-codel.c @@ -0,0 +1,351 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later + * Copyright © 2019 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" +#include "strv.h" + +static int fair_queueing_controlled_delay_init(QDisc *qdisc) { + FairQueueingControlledDelay *fqcd; + + assert(qdisc); + + fqcd = FQ_CODEL(qdisc); + + fqcd->memory_limit = UINT32_MAX; + fqcd->ce_threshold_usec = USEC_INFINITY; + fqcd->ecn = -1; + + return 0; +} + +static int fair_queueing_controlled_delay_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) { + FairQueueingControlledDelay *fqcd; + int r; + + assert(link); + assert(qdisc); + assert(req); + + assert_se(fqcd = FQ_CODEL(qdisc)); + + r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "fq_codel"); + if (r < 0) + return r; + + if (fqcd->packet_limit > 0) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_LIMIT, fqcd->packet_limit); + if (r < 0) + return r; + } + + if (fqcd->flows > 0) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_FLOWS, fqcd->flows); + if (r < 0) + return r; + } + + if (fqcd->quantum > 0) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_QUANTUM, fqcd->quantum); + if (r < 0) + return r; + } + + if (fqcd->interval_usec > 0) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_INTERVAL, fqcd->interval_usec); + if (r < 0) + return r; + } + + if (fqcd->target_usec > 0) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_TARGET, fqcd->target_usec); + if (r < 0) + return r; + } + + if (fqcd->ecn >= 0) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_ECN, fqcd->ecn); + if (r < 0) + return r; + } + + if (fqcd->ce_threshold_usec != USEC_INFINITY) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_CE_THRESHOLD, fqcd->ce_threshold_usec); + if (r < 0) + return r; + } + + if (fqcd->memory_limit != UINT32_MAX) { + r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_MEMORY_LIMIT, fqcd->memory_limit); + if (r < 0) + return r; + } + + r = sd_netlink_message_close_container(req); + if (r < 0) + return r; + + return 0; +} + +int config_parse_fair_queueing_controlled_delay_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; + FairQueueingControlledDelay *fqcd; + Network *network = ASSERT_PTR(data); + uint32_t *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "More than one kind of queueing discipline, ignoring assignment: %m"); + return 0; + } + + fqcd = FQ_CODEL(qdisc); + + if (streq(lvalue, "PacketLimit")) + p = &fqcd->packet_limit; + else if (streq(lvalue, "Flows")) + p = &fqcd->flows; + else + assert_not_reached(); + + if (isempty(rvalue)) { + *p = 0; + + TAKE_PTR(qdisc); + return 0; + } + + r = safe_atou32(rvalue, p); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to parse '%s=', ignoring assignment: %s", + lvalue, rvalue); + return 0; + } + + TAKE_PTR(qdisc); + + return 0; +} + +int config_parse_fair_queueing_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; + FairQueueingControlledDelay *fqcd; + Network *network = ASSERT_PTR(data); + usec_t *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "More than one kind of queueing discipline, ignoring assignment: %m"); + return 0; + } + + fqcd = FQ_CODEL(qdisc); + + if (streq(lvalue, "TargetSec")) + p = &fqcd->target_usec; + else if (streq(lvalue, "IntervalSec")) + p = &fqcd->interval_usec; + else if (streq(lvalue, "CEThresholdSec")) + p = &fqcd->ce_threshold_usec; + else + assert_not_reached(); + + if (isempty(rvalue)) { + if (streq(lvalue, "CEThresholdSec")) + *p = USEC_INFINITY; + else + *p = 0; + + TAKE_PTR(qdisc); + return 0; + } + + r = parse_sec(rvalue, p); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to parse '%s=', ignoring assignment: %s", + lvalue, rvalue); + return 0; + } + + TAKE_PTR(qdisc); + + return 0; +} + +int config_parse_fair_queueing_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; + FairQueueingControlledDelay *fqcd; + Network *network = ASSERT_PTR(data); + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "More than one kind of queueing discipline, ignoring assignment: %m"); + return 0; + } + + fqcd = FQ_CODEL(qdisc); + + if (isempty(rvalue)) { + fqcd->ecn = -1; + + TAKE_PTR(qdisc); + return 0; + } + + r = parse_boolean(rvalue); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to parse '%s=', ignoring assignment: %s", + lvalue, rvalue); + return 0; + } + + fqcd->ecn = r; + TAKE_PTR(qdisc); + + return 0; +} + +int config_parse_fair_queueing_controlled_delay_size( + 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; + FairQueueingControlledDelay *fqcd; + Network *network = ASSERT_PTR(data); + uint64_t sz; + uint32_t *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "More than one kind of queueing discipline, ignoring assignment: %m"); + return 0; + } + + fqcd = FQ_CODEL(qdisc); + + if (STR_IN_SET(lvalue, "MemoryLimitBytes", "MemoryLimit")) + p = &fqcd->memory_limit; + else if (STR_IN_SET(lvalue, "QuantumBytes", "Quantum")) + p = &fqcd->quantum; + else + assert_not_reached(); + + if (isempty(rvalue)) { + if (STR_IN_SET(lvalue, "MemoryLimitBytes", "MemoryLimit")) + *p = UINT32_MAX; + else + *p = 0; + + TAKE_PTR(qdisc); + return 0; + } + + r = parse_size(rvalue, 1024, &sz); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to parse '%s=', ignoring assignment: %s", + lvalue, rvalue); + return 0; + } + if (sz >= UINT32_MAX) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Specified '%s=' is too large, ignoring assignment: %s", + lvalue, rvalue); + return 0; + } + + *p = sz; + TAKE_PTR(qdisc); + + return 0; +} + +const QDiscVTable fq_codel_vtable = { + .object_size = sizeof(FairQueueingControlledDelay), + .tca_kind = "fq_codel", + .init = fair_queueing_controlled_delay_init, + .fill_message = fair_queueing_controlled_delay_fill_message, +}; |