event/dsw: add port configuration

[dpdk.git] / drivers / event / dsw / dsw_evdev.h

diff --git a/drivers/event/dsw/dsw_evdev.h b/drivers/event/dsw/dsw_evdev.h
index 5eda8d1..2a4f104 100644 (file)
--- a/drivers/event/dsw/dsw_evdev.h
+++ b/drivers/event/dsw/dsw_evdev.h
@@ -5,6 +5,7 @@
 #ifndef _DSW_EVDEV_H_
 #define _DSW_EVDEV_H_
 
+#include <rte_event_ring.h>
 #include <rte_eventdev.h>
 
 #define DSW_PMD_NAME RTE_STR(event_dsw)
@@ -23,6 +24,31 @@
 #define DSW_MAX_FLOWS (1<<(DSW_MAX_FLOWS_BITS))
 #define DSW_MAX_FLOWS_MASK (DSW_MAX_FLOWS-1)
 
+/* The rings are dimensioned so that all in-flight events can reside
+ * on any one of the port rings, to avoid the trouble of having to
+ * care about the case where there's no room on the destination port's
+ * input ring.
+ */
+#define DSW_IN_RING_SIZE (DSW_MAX_EVENTS)
+
+struct dsw_port {
+       uint16_t id;
+
+       /* Keeping a pointer here to avoid container_of() calls, which
+        * are expensive since they are very frequent and will result
+        * in an integer multiplication (since the port id is an index
+        * into the dsw_evdev port array).
+        */
+       struct dsw_evdev *dsw;
+
+       uint16_t dequeue_depth;
+       uint16_t enqueue_depth;
+
+       int32_t new_event_threshold;
+
+       struct rte_event_ring *in_ring __rte_cache_aligned;
+} __rte_cache_aligned;
+
 struct dsw_queue {
        uint8_t schedule_type;
        uint16_t num_serving_ports;
@@ -31,6 +57,8 @@ struct dsw_queue {
 struct dsw_evdev {
        struct rte_eventdev_data *data;
 
+       struct dsw_port ports[DSW_MAX_PORTS];
+       uint16_t num_ports;
        struct dsw_queue queues[DSW_MAX_QUEUES];
        uint8_t num_queues;
 };