[dpdk-dev] [PATCH v6 07/10] examples/l2fwd-event: add service core setup

[pbhagavatula at marvell.com]

From: Pavan Nikhilesh <pbhagavatula at marvell.com>

Setup service cores for eventdev and Rx/Tx adapter when they don't have
internal port capability.

Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
---
 examples/l2fwd-event/l2fwd_event.c | 82 ++++++++++++++++++++++++++++++
 examples/l2fwd-event/l2fwd_event.h |  1 +
 examples/l2fwd-event/main.c        |  3 ++
 3 files changed, 86 insertions(+)

diff --git a/examples/l2fwd-event/l2fwd_event.c b/examples/l2fwd-event/l2fwd_event.c
index 33c702739..562d61292 100644
--- a/examples/l2fwd-event/l2fwd_event.c
+++ b/examples/l2fwd-event/l2fwd_event.c
@@ -17,6 +17,88 @@
 
 #include "l2fwd_event.h"
 
+static inline int
+l2fwd_event_service_enable(uint32_t service_id)
+{
+	uint8_t min_service_count = UINT8_MAX;
+	uint32_t slcore_array[RTE_MAX_LCORE];
+	unsigned int slcore = 0;
+	uint8_t service_count;
+	int32_t slcore_count;
+
+	if (!rte_service_lcore_count())
+		return -ENOENT;
+
+	slcore_count = rte_service_lcore_list(slcore_array, RTE_MAX_LCORE);
+	if (slcore_count < 0)
+		return -ENOENT;
+	/* Get the core which has least number of services running. */
+	while (slcore_count--) {
+		/* Reset default mapping */
+		rte_service_map_lcore_set(service_id,
+				slcore_array[slcore_count], 0);
+		service_count = rte_service_lcore_count_services(
+				slcore_array[slcore_count]);
+		if (service_count < min_service_count) {
+			slcore = slcore_array[slcore_count];
+			min_service_count = service_count;
+		}
+	}
+	if (rte_service_map_lcore_set(service_id, slcore, 1))
+		return -ENOENT;
+	rte_service_lcore_start(slcore);
+
+	return 0;
+}
+
+void
+l2fwd_event_service_setup(struct l2fwd_resources *rsrc)
+{
+	struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
+	struct rte_event_dev_info evdev_info;
+	uint32_t service_id, caps;
+	int ret, i;
+
+	rte_event_dev_info_get(evt_rsrc->event_d_id, &evdev_info);
+	if (evdev_info.event_dev_cap  & RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED) {
+		ret = rte_event_dev_service_id_get(evt_rsrc->event_d_id,
+				&service_id);
+		if (ret != -ESRCH && ret != 0)
+			rte_panic("Error in starting eventdev service\n");
+		l2fwd_event_service_enable(service_id);
+	}
+
+	for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++) {
+		ret = rte_event_eth_rx_adapter_caps_get(evt_rsrc->event_d_id,
+				evt_rsrc->rx_adptr.rx_adptr[i], &caps);
+		if (ret < 0)
+			rte_panic("Failed to get Rx adapter[%d] caps\n",
+				  evt_rsrc->rx_adptr.rx_adptr[i]);
+		ret = rte_event_eth_rx_adapter_service_id_get(
+				evt_rsrc->event_d_id,
+				&service_id);
+		if (ret != -ESRCH && ret != 0)
+			rte_panic("Error in starting Rx adapter[%d] service\n",
+				  evt_rsrc->rx_adptr.rx_adptr[i]);
+		l2fwd_event_service_enable(service_id);
+	}
+
+	for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++) {
+		ret = rte_event_eth_tx_adapter_caps_get(evt_rsrc->event_d_id,
+				evt_rsrc->tx_adptr.tx_adptr[i], &caps);
+		if (ret < 0)
+			rte_panic("Failed to get Rx adapter[%d] caps\n",
+				  evt_rsrc->tx_adptr.tx_adptr[i]);
+		ret = rte_event_eth_tx_adapter_service_id_get(
+				evt_rsrc->event_d_id,
+				&service_id);
+		if (ret != -ESRCH && ret != 0)
+			rte_panic("Error in starting Rx adapter[%d] service\n",
+				  evt_rsrc->tx_adptr.tx_adptr[i]);
+		l2fwd_event_service_enable(service_id);
+	}
+}
+
 static void
 l2fwd_event_capability_setup(struct l2fwd_event_resources *evt_rsrc)
 {
diff --git a/examples/l2fwd-event/l2fwd_event.h b/examples/l2fwd-event/l2fwd_event.h
index 1d7090ddf..ebfbfe460 100644
--- a/examples/l2fwd-event/l2fwd_event.h
+++ b/examples/l2fwd-event/l2fwd_event.h
@@ -66,5 +66,6 @@ struct l2fwd_event_resources {
 void l2fwd_event_resource_setup(struct l2fwd_resources *rsrc);
 void l2fwd_event_set_generic_ops(struct event_setup_ops *ops);
 void l2fwd_event_set_internal_port_ops(struct event_setup_ops *ops);
+void l2fwd_event_service_setup(struct l2fwd_resources *rsrc);
 
 #endif /* __L2FWD_EVENT_H__ */
diff --git a/examples/l2fwd-event/main.c b/examples/l2fwd-event/main.c
index f60ab0c73..48a91dc70 100644
--- a/examples/l2fwd-event/main.c
+++ b/examples/l2fwd-event/main.c
@@ -397,6 +397,9 @@ main(int argc, char **argv)
 				  port_id);
 	}
 
+	if (rsrc->event_mode)
+		l2fwd_event_service_setup(rsrc);
+
 	check_all_ports_link_status(rsrc, rsrc->enabled_port_mask);
 
 	/* launch per-lcore init on every lcore */
-- 
2.17.1