[dpdk-dev] [PATCH v5 03/10] examples/l2fwd-event: add infra to split eventdev framework

[pbhagavatula at marvell.com]

From: Sunil Kumar Kori <skori at marvell.com>

Add infra to split eventdev framework based on event Tx adapter
capability.
If event Tx adapter has internal port capability then we use
`rte_event_eth_tx_adapter_enqueue` to transmitting packets else
we use a SINGLE_LINK event queue to enqueue packets to a service
core which is responsible for transmitting packets.

Signed-off-by: Sunil Kumar Kori <skori at marvell.com>
Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
---
 examples/l2fwd-event/Makefile                 |  2 ++
 examples/l2fwd-event/l2fwd_event.c            | 27 +++++++++++++++++++
 examples/l2fwd-event/l2fwd_event.h            |  7 +++++
 examples/l2fwd-event/l2fwd_event_generic.c    | 23 ++++++++++++++++
 .../l2fwd-event/l2fwd_event_internal_port.c   | 23 ++++++++++++++++
 examples/l2fwd-event/meson.build              |  2 ++
 6 files changed, 84 insertions(+)
 create mode 100644 examples/l2fwd-event/l2fwd_event_generic.c
 create mode 100644 examples/l2fwd-event/l2fwd_event_internal_port.c

diff --git a/examples/l2fwd-event/Makefile b/examples/l2fwd-event/Makefile
index 08ba1835d..6f4176882 100644
--- a/examples/l2fwd-event/Makefile
+++ b/examples/l2fwd-event/Makefile
@@ -10,6 +10,8 @@ SRCS-y := main.c
 SRCS-y += l2fwd_poll.c
 SRCS-y += l2fwd_event.c
 SRCS-y += l2fwd_common.c
+SRCS-y += l2fwd_event_generic.c
+SRCS-y += l2fwd_event_internal_port.c
 
 # Build using pkg-config variables if possible
 ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
diff --git a/examples/l2fwd-event/l2fwd_event.c b/examples/l2fwd-event/l2fwd_event.c
index 621ff63f0..1fb4dbeb6 100644
--- a/examples/l2fwd-event/l2fwd_event.c
+++ b/examples/l2fwd-event/l2fwd_event.c
@@ -17,6 +17,30 @@
 
 #include "l2fwd_event.h"
 
+static void
+l2fwd_event_capability_setup(struct l2fwd_event_resources *event_rsrc)
+{
+	uint32_t caps = 0;
+	uint16_t i;
+	int ret;
+
+	RTE_ETH_FOREACH_DEV(i) {
+		ret = rte_event_eth_tx_adapter_caps_get(0, i, &caps);
+		if (ret)
+			rte_exit(EXIT_FAILURE,
+				 "Invalid capability for Tx adptr port %d\n",
+				 i);
+
+		event_rsrc->tx_mode_q |= !(caps &
+				   RTE_EVENT_ETH_TX_ADAPTER_CAP_INTERNAL_PORT);
+	}
+
+	if (event_rsrc->tx_mode_q)
+		l2fwd_event_set_generic_ops(&event_rsrc->ops);
+	else
+		l2fwd_event_set_internal_port_ops(&event_rsrc->ops);
+}
+
 void
 l2fwd_event_resource_setup(struct l2fwd_resources *l2fwd_rsrc)
 {
@@ -31,4 +55,7 @@ l2fwd_event_resource_setup(struct l2fwd_resources *l2fwd_rsrc)
 		rte_exit(EXIT_FAILURE, "failed to allocate memory\n");
 
 	l2fwd_rsrc->event_rsrc = event_rsrc;
+
+	/* Setup eventdev capability callbacks */
+	l2fwd_event_capability_setup(event_rsrc);
 }
diff --git a/examples/l2fwd-event/l2fwd_event.h b/examples/l2fwd-event/l2fwd_event.h
index 8ac2dc266..b9d089c2f 100644
--- a/examples/l2fwd-event/l2fwd_event.h
+++ b/examples/l2fwd-event/l2fwd_event.h
@@ -13,9 +13,16 @@
 
 #include "l2fwd_common.h"
 
+struct event_setup_ops {
+};
+
 struct l2fwd_event_resources {
+	uint8_t tx_mode_q;
+	struct event_setup_ops ops;
 };
 
 void l2fwd_event_resource_setup(struct l2fwd_resources *l2fwd_rsrc);
+void l2fwd_event_set_generic_ops(struct event_setup_ops *ops);
+void l2fwd_event_set_internal_port_ops(struct event_setup_ops *ops);
 
 #endif /* __L2FWD_EVENT_H__ */
diff --git a/examples/l2fwd-event/l2fwd_event_generic.c b/examples/l2fwd-event/l2fwd_event_generic.c
new file mode 100644
index 000000000..9afade7d2
--- /dev/null
+++ b/examples/l2fwd-event/l2fwd_event_generic.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+
+#include <stdbool.h>
+#include <getopt.h>
+
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_eventdev.h>
+#include <rte_event_eth_rx_adapter.h>
+#include <rte_event_eth_tx_adapter.h>
+#include <rte_lcore.h>
+#include <rte_spinlock.h>
+
+#include "l2fwd_common.h"
+#include "l2fwd_event.h"
+
+void
+l2fwd_event_set_generic_ops(struct event_setup_ops *ops)
+{
+	RTE_SET_USED(ops);
+}
diff --git a/examples/l2fwd-event/l2fwd_event_internal_port.c b/examples/l2fwd-event/l2fwd_event_internal_port.c
new file mode 100644
index 000000000..ce95b8e6d
--- /dev/null
+++ b/examples/l2fwd-event/l2fwd_event_internal_port.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+
+#include <stdbool.h>
+#include <getopt.h>
+
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_eventdev.h>
+#include <rte_event_eth_rx_adapter.h>
+#include <rte_event_eth_tx_adapter.h>
+#include <rte_lcore.h>
+#include <rte_spinlock.h>
+
+#include "l2fwd_common.h"
+#include "l2fwd_event.h"
+
+void
+l2fwd_event_set_internal_port_ops(struct event_setup_ops *ops)
+{
+	RTE_SET_USED(ops);
+}
diff --git a/examples/l2fwd-event/meson.build b/examples/l2fwd-event/meson.build
index 84ee1af84..69e90ab2d 100644
--- a/examples/l2fwd-event/meson.build
+++ b/examples/l2fwd-event/meson.build
@@ -12,4 +12,6 @@ sources = files(
 	'l2fwd_poll.c',
 	'l2fwd_common.c',
 	'l2fwd_event.c',
+	'l2fwd_event_internal_port.c',
+	'l2fwd_event_generic.c'
 )
-- 
2.17.1