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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/network/tc/qfq.c
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/network/tc/qfq.c')
-rw-r--r--src/network/tc/qfq.c177
1 files changed, 177 insertions, 0 deletions
diff --git a/src/network/tc/qfq.c b/src/network/tc/qfq.c
new file mode 100644
index 0000000..7702e6f
--- /dev/null
+++ b/src/network/tc/qfq.c
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright © 2020 VMware, Inc. */
+
+#include <linux/pkt_sched.h>
+
+#include "parse-util.h"
+#include "qdisc.h"
+#include "qfq.h"
+#include "string-util.h"
+
+#define QFQ_MAX_WEIGHT (1 << 10)
+#define QFQ_MIN_MAX_PACKET 512
+#define QFQ_MAX_MAX_PACKET (1 << 16)
+
+const QDiscVTable qfq_vtable = {
+ .object_size = sizeof(QuickFairQueueing),
+ .tca_kind = "qfq",
+};
+
+static int quick_fair_queueing_class_fill_message(Link *link, TClass *tclass, sd_netlink_message *req) {
+ QuickFairQueueingClass *qfq;
+ int r;
+
+ assert(link);
+ assert(tclass);
+ assert(req);
+
+ assert_se(qfq = TCLASS_TO_QFQ(tclass));
+
+ r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "qfq");
+ if (r < 0)
+ return r;
+
+ if (qfq->weight > 0) {
+ r = sd_netlink_message_append_u32(req, TCA_QFQ_WEIGHT, qfq->weight);
+ if (r < 0)
+ return r;
+ }
+
+ if (qfq->max_packet > 0) {
+ r = sd_netlink_message_append_u32(req, TCA_QFQ_LMAX, qfq->max_packet);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_netlink_message_close_container(req);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int config_parse_quick_fair_queueing_weight(
+ 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_(tclass_free_or_set_invalidp) TClass *tclass = NULL;
+ QuickFairQueueingClass *qfq;
+ Network *network = ASSERT_PTR(data);
+ uint32_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = tclass_new_static(TCLASS_KIND_QFQ, network, filename, section_line, &tclass);
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to create traffic control class, ignoring assignment: %m");
+ return 0;
+ }
+
+ qfq = TCLASS_TO_QFQ(tclass);
+
+ if (isempty(rvalue)) {
+ qfq->weight = 0;
+ TAKE_PTR(tclass);
+ return 0;
+ }
+
+ r = safe_atou32(rvalue, &v);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ if (v == 0 || v > QFQ_MAX_WEIGHT) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "Invalid '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ qfq->weight = v;
+ TAKE_PTR(tclass);
+
+ return 0;
+}
+
+int config_parse_quick_fair_queueing_max_packet(
+ 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_(tclass_free_or_set_invalidp) TClass *tclass = NULL;
+ QuickFairQueueingClass *qfq;
+ Network *network = ASSERT_PTR(data);
+ uint64_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = tclass_new_static(TCLASS_KIND_QFQ, network, filename, section_line, &tclass);
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to create traffic control class, ignoring assignment: %m");
+ return 0;
+ }
+
+ qfq = TCLASS_TO_QFQ(tclass);
+
+ if (isempty(rvalue)) {
+ qfq->max_packet = 0;
+ TAKE_PTR(tclass);
+ return 0;
+ }
+
+ r = parse_size(rvalue, 1024, &v);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ if (v < QFQ_MIN_MAX_PACKET || v > QFQ_MAX_MAX_PACKET) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "Invalid '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ qfq->max_packet = (uint32_t) v;
+ TAKE_PTR(tclass);
+
+ return 0;
+}
+
+const TClassVTable qfq_tclass_vtable = {
+ .object_size = sizeof(QuickFairQueueingClass),
+ .tca_kind = "qfq",
+ .fill_message = quick_fair_queueing_class_fill_message,
+};