[dpdk-dev] [PATCH 04/15] event/sw: add function to return device capabilities

[Harry van Haaren <harry.van.haaren@intel.com>]

From: Bruce Richardson <bruce.richardson@intel.com>

Add in the info_get function to return details on the queues, flow,
prioritization capabilities, etc. that this device has.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---
 drivers/event/sw/sw_evdev.c | 23 +++++++++++++++++++++++
 drivers/event/sw/sw_evdev.h | 11 +++++++++++
 2 files changed, 34 insertions(+)

diff --git a/drivers/event/sw/sw_evdev.c b/drivers/event/sw/sw_evdev.c
index 29762b8..d75bf50 100644
--- a/drivers/event/sw/sw_evdev.c
+++ b/drivers/event/sw/sw_evdev.c
@@ -45,6 +45,28 @@
 
 int sched_quanta = 128;
 
+static void
+sw_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *info)
+{
+	RTE_SET_USED(dev);
+
+	static const struct rte_event_dev_info evdev_sw_info = {
+			.driver_name = PMD_NAME,
+			.max_event_queues = RTE_EVENT_MAX_QUEUES_PER_DEV,
+			.max_event_queue_flows = SW_QID_NUM_FIDS,
+			.max_event_queue_priority_levels = SW_Q_PRIORITY_MAX,
+			.max_event_priority_levels = SW_IQS_MAX,
+			.max_event_ports = SW_PORTS_MAX,
+			.max_event_port_dequeue_depth = MAX_SW_CONS_Q_DEPTH,
+			.max_event_port_enqueue_depth = MAX_SW_PROD_Q_DEPTH,
+			.max_num_events = SW_INFLIGHT_EVENTS_TOTAL,
+			.event_dev_cap = (RTE_EVENT_DEV_CAP_QUEUE_QOS |
+					RTE_EVENT_DEV_CAP_EVENT_QOS),
+	};
+
+	*info = evdev_sw_info;
+}
+
 static int
 assign_numa_node(const char *key __rte_unused, const char *value, void *opaque)
 {
@@ -69,6 +91,7 @@ static int
 sw_probe(const char *name, const char *params)
 {
 	static const struct rte_eventdev_ops evdev_sw_ops = {
+			.dev_infos_get = sw_info_get,
 	};
 
 	static const char *const args[] = { NUMA_NODE_ARG, SCHED_QUANTA_ARG, NULL };
diff --git a/drivers/event/sw/sw_evdev.h b/drivers/event/sw/sw_evdev.h
index 1400417..b6d99fd 100644
--- a/drivers/event/sw/sw_evdev.h
+++ b/drivers/event/sw/sw_evdev.h
@@ -36,6 +36,17 @@
 #include <rte_eventdev.h>
 #include <rte_eventdev_pmd.h>
 
+#define PMD_NAME "event_sw"
+
+#define SW_QID_NUM_FIDS 16384
+#define SW_IQS_MAX 4
+#define SW_Q_PRIORITY_MAX 255
+#define SW_PORTS_MAX 64
+#define MAX_SW_CONS_Q_DEPTH 128
+#define SW_INFLIGHT_EVENTS_TOTAL 4096
+/* allow for lots of over-provisioning */
+#define MAX_SW_PROD_Q_DEPTH 4096
+
 struct sw_evdev {
 	struct rte_eventdev_data *data;
 };
-- 
2.7.4