If an eventdev PMD does not wish to provide event timer adapter ops
definitions, the library will fall back to a default software
implementation whose entry points are added by this commit.
Signed-off-by: Erik Gabriel Carrillo <erik.g.carri...@intel.com>
---
lib/librte_eventdev/Makefile | 1 +
lib/librte_eventdev/rte_event_timer_adapter.c | 14 +++
lib/librte_eventdev/sw_event_timer_adapter.c | 123 ++++++++++++++++++++++++++
3 files changed, 138 insertions(+)
create mode 100644 lib/librte_eventdev/sw_event_timer_adapter.c
diff --git a/lib/librte_eventdev/Makefile b/lib/librte_eventdev/Makefile
index ad1a5db..d5c7cc7 100644
--- a/lib/librte_eventdev/Makefile
+++ b/lib/librte_eventdev/Makefile
@@ -46,6 +46,7 @@ SRCS-y += rte_eventdev.c
SRCS-y += rte_event_ring.c
SRCS-y += rte_event_eth_rx_adapter.c
SRCS-y += rte_event_timer_adapter.c
+SRCS-y += sw_event_timer_adapter.c
# export include files
SYMLINK-y-include += rte_eventdev.h
diff --git a/lib/librte_eventdev/rte_event_timer_adapter.c
b/lib/librte_eventdev/rte_event_timer_adapter.c
index 7708e2b..09dcf0f 100644
--- a/lib/librte_eventdev/rte_event_timer_adapter.c
+++ b/lib/librte_eventdev/rte_event_timer_adapter.c
@@ -48,6 +48,8 @@
static struct rte_event_timer_adapter adapters[MAX_EVENT_TIMER_ADAPTERS];
+extern const struct rte_event_timer_adapter_ops sw_event_adapter_timer_ops;
+
static inline int
adapter_valid(const struct rte_event_timer_adapter *adapter)
{
@@ -207,6 +209,12 @@ rte_event_timer_adapter_create_ext(
}
}
+ /* If eventdev PMD did not provide ops, use default software
+ * implementation.
+ */
+ if (adapter->ops == NULL)
+ adapter->ops = &sw_event_adapter_timer_ops;
+
/* Allow driver to do some setup */
FUNC_PTR_OR_NULL_RET_WITH_ERRNO(adapter->ops->init, -ENOTSUP);
ret = adapter->ops->init(adapter);
@@ -313,6 +321,12 @@ rte_event_timer_adapter_lookup(uint16_t adapter_id)
return NULL;
}
+ /* If eventdev PMD did not provide ops, use default software
+ * implementation.
+ */
+ if (adapter->ops == NULL)
+ adapter->ops = &sw_event_adapter_timer_ops;
+
/* Set fast-path function pointers */
adapter->arm_burst = adapter->ops->arm_burst;
adapter->arm_tmo_tick_burst = adapter->ops->arm_tmo_tick_burst;
diff --git a/lib/librte_eventdev/sw_event_timer_adapter.c
b/lib/librte_eventdev/sw_event_timer_adapter.c
new file mode 100644
index 0000000..43fdad2
--- /dev/null
+++ b/lib/librte_eventdev/sw_event_timer_adapter.c
@@ -0,0 +1,123 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2017 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "rte_event_timer_adapter.h"
+#include "rte_event_timer_adapter_driver.h"
+
+static int
+sw_event_timer_adapter_init(struct rte_event_timer_adapter *adapter)
+{
+ RTE_SET_USED(adapter);
+
+ return 0;
+}
+
+static int
+sw_event_timer_adapter_uninit(struct rte_event_timer_adapter *adapter)
+{
+ RTE_SET_USED(adapter);
+
+ return 0;
+}
+
+static int
+sw_event_timer_adapter_start(const struct rte_event_timer_adapter *adapter)
+{
+ RTE_SET_USED(adapter);
+
+ return 0;
+}
+
+static int
+sw_event_timer_adapter_stop(const struct rte_event_timer_adapter *adapter)
+{
+ RTE_SET_USED(adapter);
+
+ return 0;
+}
+
+static void
+sw_event_timer_adapter_get_info(const struct rte_event_timer_adapter *adapter,
+ struct rte_event_timer_adapter_info *adapter_info)
+{
+ RTE_SET_USED(adapter);
+ RTE_SET_USED(adapter_info);
+}
+
+static int
+sw_event_timer_arm_burst(const struct rte_event_timer_adapter *adapter,
+ struct rte_event_timer **evtims,
+ uint16_t nb_evtims)
+{
+ RTE_SET_USED(adapter);
+ RTE_SET_USED(evtims);
+ RTE_SET_USED(nb_evtims);
+
+ return 0;
+}
+
+static int
+sw_event_timer_cancel_burst(const struct rte_event_timer_adapter *adapter,
+ struct rte_event_timer **evtims,
+ uint16_t nb_evtims)
+{
+ RTE_SET_USED(adapter);
+ RTE_SET_USED(evtims);
+ RTE_SET_USED(nb_evtims);
+
+ return 0;
+}
+
+static int
+sw_event_timer_arm_tmo_tick_burst(const struct rte_event_timer_adapter
*adapter,
+ struct rte_event_timer **tims,
+ uint64_t timeout_tick,
+ uint16_t nb_tims)
+{
+ RTE_SET_USED(adapter);
+ RTE_SET_USED(tims);
+ RTE_SET_USED(timeout_tick);
+ RTE_SET_USED(nb_tims);
+
+ return 0;
+}
+
+const struct rte_event_timer_adapter_ops sw_event_adapter_timer_ops = {
+ .init = sw_event_timer_adapter_init,
+ .uninit = sw_event_timer_adapter_uninit,
+ .start = sw_event_timer_adapter_start,
+ .stop = sw_event_timer_adapter_stop,
+ .get_info = sw_event_timer_adapter_get_info,
+ .arm_burst = sw_event_timer_arm_burst,
+ .arm_tmo_tick_burst = sw_event_timer_arm_tmo_tick_burst,
+ .cancel_burst = sw_event_timer_cancel_burst,
+};
--
2.6.4
