Add tc ingress qdisc support so we can add qdisc
as a qos on port or through config.
usage:
ovs-vsctl -- set port <PORT> qos=@newq -- --id=@newq create \
qos type=linux-ingress
where <PORT> is a already added port using vsctl add-port.
Signed-off-by: Paul Blakey <pa...@mellanox.com>
Signed-off-by: Shahar Klein <shah...@mellanox.com>
---
lib/netdev-linux.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c
index 8e5fa90..5109b8c 100644
--- a/lib/netdev-linux.c
+++ b/lib/netdev-linux.c
@@ -419,6 +419,7 @@ static const struct tc_ops tc_ops_codel;
static const struct tc_ops tc_ops_fqcodel;
static const struct tc_ops tc_ops_sfq;
static const struct tc_ops tc_ops_default;
+static const struct tc_ops tc_ops_ingress;
static const struct tc_ops tc_ops_other;
static const struct tc_ops *const tcs[] = {
@@ -428,6 +429,7 @@ static const struct tc_ops *const tcs[] = {
&tc_ops_fqcodel, /* Fair queue controlled delay */
&tc_ops_sfq, /* Stochastic fair queueing */
&tc_ops_default, /* Default qdisc (see tc-pfifo_fast(8)). */
+ &tc_ops_ingress, /* Ingress. */
&tc_ops_other, /* Some other qdisc. */
NULL
};
@@ -4570,6 +4572,76 @@ static const struct tc_ops tc_ops_hfsc = {
hfsc_class_dump_stats /* class_dump_stats */
};
+/* ingress traffic control class. */
+
+struct ingress {
+ struct tc tc;
+};
+
+static void
+ingress_install__(struct netdev *netdev_)
+{
+ struct netdev_linux *netdev = netdev_linux_cast(netdev_);
+ struct ingress *ingress;
+
+ ingress = xmalloc(sizeof *ingress);
+ tc_init(&ingress->tc, &tc_ops_ingress);
+
+ netdev->tc = &ingress->tc;
+}
+
+static void
+ingress_parse_qdisc_details__(struct netdev *netdev OVS_UNUSED,
+ const struct smap *details OVS_UNUSED,
+ struct ingress *ingress OVS_UNUSED)
+{
+ /* parse details */
+}
+
+static int
+ingress_tc_install(struct netdev *netdev, const struct smap *details
OVS_UNUSED)
+{
+ int error;
+ struct ingress ingress;
+
+ ingress_parse_qdisc_details__(netdev, details, &ingress);
+ error = tc_add_del_ingress_qdisc(netdev, true);
+ if (!error) {
+ ingress_install__(netdev);
+ }
+ return error;
+}
+
+static int
+ingress_tc_load(struct netdev *netdev, struct ofpbuf *nlmsg OVS_UNUSED)
+{
+ ingress_install__(netdev);
+ return 0;
+}
+
+static void
+ingress_tc_destroy(struct tc *tc)
+{
+ struct ingress *ingress = CONTAINER_OF(tc, struct ingress, tc);
+ free(ingress);
+}
+
+static const struct tc_ops tc_ops_ingress = {
+ "ingress", /* linux_name */
+ "linux-ingress", /* ovs_name */
+ 0, /* n_queues */
+ ingress_tc_install,
+ ingress_tc_load,
+ ingress_tc_destroy,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+};
+
/* "linux-default" traffic control class.
*
* This class represents the default, unnamed Linux qdisc. It corresponds to
--
1.8.3.1
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