New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 145 insertions, 6 deletions

diff --git a/drivers/event/sw/sw_evdev.c b/drivers/event/sw/sw_evdev.c
index 6672fd8e..a6bb9138 100644
--- a/drivers/event/sw/sw_evdev.c
+++ b/drivers/event/sw/sw_evdev.c
@@ -361,9 +361,99 @@ sw_init_qid_iqs(struct sw_evdev *sw)
 	}
 }
 
+static int
+sw_qids_empty(struct sw_evdev *sw)
+{
+	unsigned int i, j;
+
+	for (i = 0; i < sw->qid_count; i++) {
+		for (j = 0; j < SW_IQS_MAX; j++) {
+			if (iq_count(&sw->qids[i].iq[j]))
+				return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int
+sw_ports_empty(struct sw_evdev *sw)
+{
+	unsigned int i;
+
+	for (i = 0; i < sw->port_count; i++) {
+		if ((rte_event_ring_count(sw->ports[i].rx_worker_ring)) ||
+		     rte_event_ring_count(sw->ports[i].cq_worker_ring))
+			return 0;
+	}
+
+	return 1;
+}
+
 static void
-sw_clean_qid_iqs(struct sw_evdev *sw)
+sw_drain_ports(struct rte_eventdev *dev)
 {
+	struct sw_evdev *sw = sw_pmd_priv(dev);
+	eventdev_stop_flush_t flush;
+	unsigned int i;
+	uint8_t dev_id;
+	void *arg;
+
+	flush = dev->dev_ops->dev_stop_flush;
+	dev_id = dev->data->dev_id;
+	arg = dev->data->dev_stop_flush_arg;
+
+	for (i = 0; i < sw->port_count; i++) {
+		struct rte_event ev;
+
+		while (rte_event_dequeue_burst(dev_id, i, &ev, 1, 0)) {
+			if (flush)
+				flush(dev_id, ev, arg);
+
+			ev.op = RTE_EVENT_OP_RELEASE;
+			rte_event_enqueue_burst(dev_id, i, &ev, 1);
+		}
+	}
+}
+
+static void
+sw_drain_queue(struct rte_eventdev *dev, struct sw_iq *iq)
+{
+	struct sw_evdev *sw = sw_pmd_priv(dev);
+	eventdev_stop_flush_t flush;
+	uint8_t dev_id;
+	void *arg;
+
+	flush = dev->dev_ops->dev_stop_flush;
+	dev_id = dev->data->dev_id;
+	arg = dev->data->dev_stop_flush_arg;
+
+	while (iq_count(iq) > 0) {
+		struct rte_event ev;
+
+		iq_dequeue_burst(sw, iq, &ev, 1);
+
+		if (flush)
+			flush(dev_id, ev, arg);
+	}
+}
+
+static void
+sw_drain_queues(struct rte_eventdev *dev)
+{
+	struct sw_evdev *sw = sw_pmd_priv(dev);
+	unsigned int i, j;
+
+	for (i = 0; i < sw->qid_count; i++) {
+		for (j = 0; j < SW_IQS_MAX; j++)
+			sw_drain_queue(dev, &sw->qids[i].iq[j]);
+	}
+}
+
+static void
+sw_clean_qid_iqs(struct rte_eventdev *dev)
+{
+	struct sw_evdev *sw = sw_pmd_priv(dev);
 	int i, j;
 
 	/* Release the IQ memory of all configured qids */
@@ -464,6 +554,33 @@ sw_eth_rx_adapter_caps_get(const struct rte_eventdev *dev,
 	return 0;
 }
 
+static int
+sw_timer_adapter_caps_get(const struct rte_eventdev *dev,
+			  uint64_t flags,
+			  uint32_t *caps,
+			  const struct rte_event_timer_adapter_ops **ops)
+{
+	RTE_SET_USED(dev);
+	RTE_SET_USED(flags);
+	*caps = 0;
+
+	/* Use default SW ops */
+	*ops = NULL;
+
+	return 0;
+}
+
+static int
+sw_crypto_adapter_caps_get(const struct rte_eventdev *dev,
+			   const struct rte_cryptodev *cdev,
+			   uint32_t *caps)
+{
+	RTE_SET_USED(dev);
+	RTE_SET_USED(cdev);
+	*caps = RTE_EVENT_CRYPTO_ADAPTER_SW_CAP;
+	return 0;
+}
+
 static void
 sw_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *info)
 {
@@ -702,10 +819,30 @@ static void
 sw_stop(struct rte_eventdev *dev)
 {
 	struct sw_evdev *sw = sw_pmd_priv(dev);
-	sw_clean_qid_iqs(sw);
+	int32_t runstate;
+
+	/* Stop the scheduler if it's running */
+	runstate = rte_service_runstate_get(sw->service_id);
+	if (runstate == 1)
+		rte_service_runstate_set(sw->service_id, 0);
+
+	while (rte_service_may_be_active(sw->service_id))
+		rte_pause();
+
+	/* Flush all events out of the device */
+	while (!(sw_qids_empty(sw) && sw_ports_empty(sw))) {
+		sw_event_schedule(dev);
+		sw_drain_ports(dev);
+		sw_drain_queues(dev);
+	}
+
+	sw_clean_qid_iqs(dev);
 	sw_xstats_uninit(sw);
 	sw->started = 0;
 	rte_smp_wmb();
+
+	if (runstate == 1)
+		rte_service_runstate_set(sw->service_id, 1);
 }
 
 static int
@@ -772,7 +909,7 @@ static int32_t sw_sched_service_func(void *args)
 static int
 sw_probe(struct rte_vdev_device *vdev)
 {
-	static const struct rte_eventdev_ops evdev_sw_ops = {
+	static struct rte_eventdev_ops evdev_sw_ops = {
 			.dev_configure = sw_dev_configure,
 			.dev_infos_get = sw_info_get,
 			.dev_close = sw_close,
@@ -791,6 +928,10 @@ sw_probe(struct rte_vdev_device *vdev)
 
 			.eth_rx_adapter_caps_get = sw_eth_rx_adapter_caps_get,
 
+			.timer_adapter_caps_get = sw_timer_adapter_caps_get,
+
+			.crypto_adapter_caps_get = sw_crypto_adapter_caps_get,
+
 			.xstats_get = sw_xstats_get,
 			.xstats_get_names = sw_xstats_get_names,
 			.xstats_get_by_name = sw_xstats_get_by_name,
@@ -933,9 +1074,7 @@ RTE_PMD_REGISTER_PARAM_STRING(event_sw, NUMA_NODE_ARG "=<int> "
 /* declared extern in header, for access from other .c files */
 int eventdev_sw_log_level;
 
-RTE_INIT(evdev_sw_init_log);
-static void
-evdev_sw_init_log(void)
+RTE_INIT(evdev_sw_init_log)
 {
 	eventdev_sw_log_level = rte_log_register("pmd.event.sw");
 	if (eventdev_sw_log_level >= 0)