[Cake] [PATCH 1/3] pkt_sched.h: add support for sch_cake API

[Dave Taht]

---
 include/uapi/linux/pkt_sched.h | 58 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index af3cc2f..ed7c111 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -935,4 +935,62 @@ enum {
 
 #define TCA_CBS_MAX (__TCA_CBS_MAX - 1)
 
+/* CAKE */
+enum {
+	TCA_CAKE_UNSPEC,
+	TCA_CAKE_BASE_RATE,
+	TCA_CAKE_DIFFSERV_MODE,
+	TCA_CAKE_ATM,
+	TCA_CAKE_FLOW_MODE,
+	TCA_CAKE_OVERHEAD,
+	TCA_CAKE_RTT,
+	TCA_CAKE_TARGET,
+	TCA_CAKE_AUTORATE,
+	TCA_CAKE_MEMORY,
+	TCA_CAKE_NAT,
+	TCA_CAKE_ETHERNET,
+	TCA_CAKE_WASH,
+	TCA_CAKE_MPU,
+	TCA_CAKE_INGRESS,
+	TCA_CAKE_ACK_FILTER,
+	__TCA_CAKE_MAX
+};
+#define TCA_CAKE_MAX	(__TCA_CAKE_MAX - 1)
+
+struct tc_cake_traffic_stats {
+	__u32 packets;
+	__u32 link_ms;
+	__u64 bytes;
+};
+
+#define TC_CAKE_MAX_TINS (8)
+struct tc_cake_xstats {
+	__u16 version;  /* == 5, increments when struct extended */
+	__u8  max_tins; /* == TC_CAKE_MAX_TINS */
+	__u8  tin_cnt;  /* <= TC_CAKE_MAX_TINS */
+
+	__u32 threshold_rate[TC_CAKE_MAX_TINS];
+	__u32 target_us[TC_CAKE_MAX_TINS];
+	struct tc_cake_traffic_stats sent[TC_CAKE_MAX_TINS];
+	struct tc_cake_traffic_stats dropped[TC_CAKE_MAX_TINS];
+	struct tc_cake_traffic_stats ecn_marked[TC_CAKE_MAX_TINS];
+	struct tc_cake_traffic_stats backlog[TC_CAKE_MAX_TINS];
+	__u32 interval_us[TC_CAKE_MAX_TINS];
+	__u32 way_indirect_hits[TC_CAKE_MAX_TINS];
+	__u32 way_misses[TC_CAKE_MAX_TINS];
+	__u32 way_collisions[TC_CAKE_MAX_TINS];
+	__u32 peak_delay_us[TC_CAKE_MAX_TINS]; /* ~= bulk flow delay */
+	__u32 avge_delay_us[TC_CAKE_MAX_TINS];
+	__u32 base_delay_us[TC_CAKE_MAX_TINS]; /* ~= sparse flows delay */
+	__u16 sparse_flows[TC_CAKE_MAX_TINS];
+	__u16 bulk_flows[TC_CAKE_MAX_TINS];
+	__u16 unresponse_flows[TC_CAKE_MAX_TINS]; /* v4 - was u32 last_len */
+	__u16 spare[TC_CAKE_MAX_TINS]; /* v4 - split last_len */
+	__u32 max_skblen[TC_CAKE_MAX_TINS];
+	__u32 capacity_estimate;  /* version 2 */
+	__u32 memory_limit;       /* version 3 */
+	__u32 memory_used;	  /* version 3 */
+	struct tc_cake_traffic_stats ack_drops[TC_CAKE_MAX_TINS]; /* v5 */
+};
+
 #endif
-- 
2.7.4