1 files changed, 51 insertions, 11 deletions

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 2016839991a4..15960564e0c3 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -64,7 +64,6 @@ static inline psched_time_t psched_get_time(void)
 }
 
 struct qdisc_watchdog {
-	u64		last_expires;
 	struct hrtimer	timer;
 	struct Qdisc	*qdisc;
 };
@@ -128,12 +127,14 @@ static inline void qdisc_run(struct Qdisc *q)
 	}
 }
 
+extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
+
 /* Calculate maximal size of packet seen by hard_start_xmit
    routine of this device.
  */
 static inline unsigned int psched_mtu(const struct net_device *dev)
 {
-	return dev->mtu + dev->hard_header_len;
+	return READ_ONCE(dev->mtu) + dev->hard_header_len;
 }
 
 static inline struct net *qdisc_net(struct Qdisc *q)
@@ -167,11 +168,13 @@ struct tc_mqprio_caps {
 struct tc_mqprio_qopt_offload {
 	/* struct tc_mqprio_qopt must always be the first element */
 	struct tc_mqprio_qopt qopt;
+	struct netlink_ext_ack *extack;
 	u16 mode;
 	u16 shaper;
 	u32 flags;
 	u64 min_rate[TC_QOPT_MAX_QUEUE];
 	u64 max_rate[TC_QOPT_MAX_QUEUE];
+	unsigned long preemptible_tcs;
 };
 
 struct tc_taprio_caps {
@@ -184,6 +187,32 @@ struct tc_taprio_caps {
 	bool broken_mqprio:1;
 };
 
+enum tc_taprio_qopt_cmd {
+	TAPRIO_CMD_REPLACE,
+	TAPRIO_CMD_DESTROY,
+	TAPRIO_CMD_STATS,
+	TAPRIO_CMD_QUEUE_STATS,
+};
+
+/**
+ * struct tc_taprio_qopt_stats - IEEE 802.1Qbv statistics
+ * @window_drops: Frames that were dropped because they were too large to be
+ *	transmitted in any of the allotted time windows (open gates) for their
+ *	traffic class.
+ * @tx_overruns: Frames still being transmitted by the MAC after the
+ *	transmission gate associated with their traffic class has closed.
+ *	Equivalent to `12.29.1.1.2 TransmissionOverrun` from 802.1Q-2018.
+ */
+struct tc_taprio_qopt_stats {
+	u64 window_drops;
+	u64 tx_overruns;
+};
+
+struct tc_taprio_qopt_queue_stats {
+	int queue;
+	struct tc_taprio_qopt_stats stats;
+};
+
 struct tc_taprio_sched_entry {
 	u8 command; /* TC_TAPRIO_CMD_* */
 
@@ -193,15 +222,26 @@ struct tc_taprio_sched_entry {
 };
 
 struct tc_taprio_qopt_offload {
-	struct tc_mqprio_qopt_offload mqprio;
-	u8 enable;
-	ktime_t base_time;
-	u64 cycle_time;
-	u64 cycle_time_extension;
-	u32 max_sdu[TC_MAX_QUEUE];
-
-	size_t num_entries;
-	struct tc_taprio_sched_entry entries[];
+	enum tc_taprio_qopt_cmd cmd;
+
+	union {
+		/* TAPRIO_CMD_STATS */
+		struct tc_taprio_qopt_stats stats;
+		/* TAPRIO_CMD_QUEUE_STATS */
+		struct tc_taprio_qopt_queue_stats queue_stats;
+		/* TAPRIO_CMD_REPLACE */
+		struct {
+			struct tc_mqprio_qopt_offload mqprio;
+			struct netlink_ext_ack *extack;
+			ktime_t base_time;
+			u64 cycle_time;
+			u64 cycle_time_extension;
+			u32 max_sdu[TC_MAX_QUEUE];
+
+			size_t num_entries;
+			struct tc_taprio_sched_entry entries[];
+		};
+	};
 };
 
 #if IS_ENABLED(CONFIG_NET_SCH_TAPRIO)