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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/network/tc/drr.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/network/tc/drr.c')
-rw-r--r--src/network/tc/drr.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/network/tc/drr.c b/src/network/tc/drr.c
new file mode 100644
index 0000000..373911b
--- /dev/null
+++ b/src/network/tc/drr.c
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright © 2020 VMware, Inc. */
+
+#include <linux/pkt_sched.h>
+
+#include "alloc-util.h"
+#include "conf-parser.h"
+#include "drr.h"
+#include "netlink-util.h"
+#include "parse-util.h"
+#include "string-util.h"
+
+const QDiscVTable drr_vtable = {
+ .object_size = sizeof(DeficitRoundRobinScheduler),
+ .tca_kind = "drr",
+};
+
+static int drr_class_fill_message(Link *link, TClass *tclass, sd_netlink_message *req) {
+ DeficitRoundRobinSchedulerClass *drr;
+ int r;
+
+ assert(link);
+ assert(tclass);
+ assert(req);
+
+ assert_se(drr = TCLASS_TO_DRR(tclass));
+
+ r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "drr");
+ if (r < 0)
+ return r;
+
+ if (drr->quantum > 0) {
+ r = sd_netlink_message_append_u32(req, TCA_DRR_QUANTUM, drr->quantum);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_netlink_message_close_container(req);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int config_parse_drr_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_(tclass_free_or_set_invalidp) TClass *tclass = NULL;
+ DeficitRoundRobinSchedulerClass *drr;
+ Network *network = ASSERT_PTR(data);
+ uint64_t u;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = tclass_new_static(TCLASS_KIND_DRR, 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;
+ }
+
+ drr = TCLASS_TO_DRR(tclass);
+
+ if (isempty(rvalue)) {
+ drr->quantum = 0;
+
+ TAKE_PTR(tclass);
+ return 0;
+ }
+
+ r = parse_size(rvalue, 1024, &u);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to parse '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+ if (u > UINT32_MAX) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid '%s=', ignoring assignment: %s",
+ lvalue, rvalue);
+ return 0;
+ }
+
+ drr->quantum = (uint32_t) u;
+
+ TAKE_PTR(tclass);
+ return 0;
+}
+
+const TClassVTable drr_tclass_vtable = {
+ .object_size = sizeof(DeficitRoundRobinSchedulerClass),
+ .tca_kind = "drr",
+ .fill_message = drr_class_fill_message,
+};