[dpdk-dev] [PATCH v6 12/23] eventtimer: add event timer arm/cancel function definitions

[Erik Gabriel Carrillo <erik.g.carrillo@intel.com>]

Signed-off-by: Erik Gabriel Carrillo <erik.g.carrillo@intel.com>
---
 lib/Makefile                                  |   2 +-
 lib/librte_eventdev/Makefile                  |   2 +-
 lib/librte_eventdev/rte_event_timer_adapter.c | 155 +++++++++++++++++++++++---
 mk/rte.app.mk                                 |   2 +-
 4 files changed, 141 insertions(+), 20 deletions(-)

diff --git a/lib/Makefile b/lib/Makefile
index 4c53f8c..c2bee80 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -29,7 +29,7 @@ DEPDIRS-librte_security := librte_eal librte_mempool librte_ring librte_mbuf
 DEPDIRS-librte_security += librte_ether
 DEPDIRS-librte_security += librte_cryptodev
 DIRS-$(CONFIG_RTE_LIBRTE_EVENTDEV) += librte_eventdev
-DEPDIRS-librte_eventdev := librte_eal librte_ring librte_ether librte_hash librte_mempool
+DEPDIRS-librte_eventdev := librte_eal librte_ring librte_ether librte_hash librte_mempool librte_timer
 DIRS-$(CONFIG_RTE_LIBRTE_VHOST) += librte_vhost
 DEPDIRS-librte_vhost := librte_eal librte_mempool librte_mbuf librte_ether
 DIRS-$(CONFIG_RTE_LIBRTE_HASH) += librte_hash
diff --git a/lib/librte_eventdev/Makefile b/lib/librte_eventdev/Makefile
index e68f888..6e95528 100644
--- a/lib/librte_eventdev/Makefile
+++ b/lib/librte_eventdev/Makefile
@@ -13,7 +13,7 @@ LIBABIVER := 3
 # build flags
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
-LDLIBS += -lrte_eal -lrte_ring -lrte_ethdev -lrte_hash -lrte_mempool
+LDLIBS += -lrte_eal -lrte_ring -lrte_ethdev -lrte_hash -lrte_mempool -lrte_timer
 
 # library source files
 SRCS-y += rte_eventdev.c
diff --git a/lib/librte_eventdev/rte_event_timer_adapter.c b/lib/librte_eventdev/rte_event_timer_adapter.c
index a4c8012..38e52cb 100644
--- a/lib/librte_eventdev/rte_event_timer_adapter.c
+++ b/lib/librte_eventdev/rte_event_timer_adapter.c
@@ -609,16 +609,91 @@ sw_event_timer_adapter_stop(const struct rte_event_timer_adapter *adapter)
 	return rte_service_component_runstate_set(sw_data->service_id, 0);
 }
 
+static __rte_always_inline void
+swap(struct rte_event_timer **evtims, int i, int j)
+{
+	struct rte_event_timer *tmp;
+
+	tmp = evtims[i];
+	evtims[i] = evtims[j];
+	evtims[j] = tmp;
+}
+
+static __rte_always_inline int
+__sw_event_timer_arm_burst(const struct rte_event_timer_adapter *adapter,
+			   struct rte_event_timer **evtims,
+			   uint16_t nb_evtims)
+{
+	int i, n, mark, nb_fails = 0;
+	int fails[nb_evtims];
+	struct rte_event_timer_adapter_sw_data *sw_data;
+	struct msg *msgs[nb_evtims];
+	struct rte_timer *tims[nb_evtims];
+
+	sw_data = adapter->data->adapter_priv;
+
+	n = rte_mempool_get_bulk(sw_data->msg_pool, (void **)msgs, nb_evtims);
+	if (n < 0) {
+		rte_errno = ENOMEM;
+		return 0;
+	}
+
+	n = rte_mempool_get_bulk(sw_data->tim_pool, (void **)tims, nb_evtims);
+	if (n < 0) {
+		rte_errno = ENOMEM;
+		return 0;
+	}
+
+	for (i = 0; i < nb_evtims; i++) {
+		rte_timer_init(tims[i]);
+		evtims[i]->impl_opaque[0] = (uintptr_t)tims[i];
+		evtims[i]->impl_opaque[1] = (uintptr_t)adapter;
+
+		msgs[i]->evtim = evtims[i];
+		msgs[i]->type = MSG_TYPE_ARM;
+	}
+
+	n = rte_ring_enqueue_burst(sw_data->msg_ring, (void **)msgs, nb_evtims,
+				   NULL);
+	if (n < nb_evtims) {
+		rte_mempool_put_bulk(sw_data->msg_pool, (void **)&msgs[n],
+				     nb_evtims - n);
+		rte_mempool_put_bulk(sw_data->tim_pool, (void **)&tims[n],
+				     nb_evtims - n);
+	}
+
+	for (i = 0; i < n; i++) {
+		/* Wait until state is updated */
+		while (evtims[i]->state == RTE_EVENT_TIMER_NOT_ARMED ||
+		       evtims[i]->state == RTE_EVENT_TIMER_CANCELED)
+			;
+
+		/* Note any failures */
+		if (evtims[i]->state != RTE_EVENT_TIMER_ARMED) {
+			fails[nb_fails++] = i;
+			rte_errno = EINVAL;
+		}
+
+		/* TODO: handle the case of consecutive arm requests;  the
+		 * second request can erroneously see success from the first
+		 */
+	}
+
+	/* Move the failures to the end of the array */
+	for (i = 0, mark = n - 1; i < nb_fails; i++, mark--)
+		swap(evtims, fails[i], mark);
+
+	n = mark + 1;
+
+	return n;
+}
+
 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;
+	return __sw_event_timer_arm_burst(adapter, evtims, nb_evtims);
 }
 
 static int
@@ -626,25 +701,71 @@ 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);
+	int i, n, mark, nb_fails = 0;
+	int fails[nb_evtims];
+	struct msg *msg, *msgs[nb_evtims];
+	struct rte_event_timer_adapter_sw_data *sw_data;
 
-	return 0;
+#ifdef RTE_LIBRTE_EVENTDEV_DEBUG
+	/* TODO: verify that service is running to avoid hanging if in block
+	 * mode
+	 */
+#endif
+
+	sw_data = adapter->data->adapter_priv;
+
+	n = rte_mempool_get_bulk(sw_data->msg_pool, (void **)msgs, nb_evtims);
+	if (n < 0) {
+		rte_errno = ENOMEM;
+		return 0;
+	}
+
+	/* Set up the messages */
+	for (i = 0; i < nb_evtims; i++) {
+		msg = msgs[i];
+		msg->type = MSG_TYPE_CANCEL;
+		msg->evtim = evtims[i];
+	}
+
+	n = rte_ring_enqueue_burst(sw_data->msg_ring, (void **)msgs, nb_evtims,
+				   NULL);
+	if (n < nb_evtims)
+		rte_mempool_put_bulk(sw_data->msg_pool, (void **)&msgs[n],
+				     nb_evtims - n);
+
+	for (i = 0; i < n; i++) {
+		/* Wait until state is updated */
+		while (evtims[i]->state == RTE_EVENT_TIMER_ARMED)
+			;
+
+		/* Note any failures */
+		if (evtims[i]->state != RTE_EVENT_TIMER_CANCELED) {
+			fails[nb_fails++] = i;
+			rte_errno = EINVAL;
+		}
+	}
+
+	/* Move the failures to the end of the array */
+	for (i = 0, mark = n - 1; i < nb_fails; i++, mark--)
+		swap(evtims, fails[i], mark);
+
+	n = mark + 1;
+
+	return n;
 }
 
 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)
+				  struct rte_event_timer **evtims,
+				  uint64_t timeout_ticks,
+				  uint16_t nb_evtims)
 {
-	RTE_SET_USED(adapter);
-	RTE_SET_USED(tims);
-	RTE_SET_USED(timeout_tick);
-	RTE_SET_USED(nb_tims);
+	int i;
 
-	return 0;
+	for (i = 0; i < nb_evtims; i++)
+		evtims[i]->timeout_ticks = timeout_ticks;
+
+	return __sw_event_timer_arm_burst(adapter, evtims, nb_evtims);
 }
 
 const struct rte_event_timer_adapter_ops sw_event_adapter_timer_ops = {
diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 6a6a745..3dd95f5 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -80,7 +80,6 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_BITRATE)        += -lrte_bitratestats
 _LDLIBS-$(CONFIG_RTE_LIBRTE_LATENCY_STATS)  += -lrte_latencystats
 _LDLIBS-$(CONFIG_RTE_LIBRTE_POWER)          += -lrte_power
 
-_LDLIBS-$(CONFIG_RTE_LIBRTE_TIMER)          += -lrte_timer
 _LDLIBS-$(CONFIG_RTE_LIBRTE_EFD)            += -lrte_efd
 
 _LDLIBS-y += --whole-archive
@@ -96,6 +95,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_ETHER)          += -lrte_ethdev
 _LDLIBS-$(CONFIG_RTE_LIBRTE_CRYPTODEV)      += -lrte_cryptodev
 _LDLIBS-$(CONFIG_RTE_LIBRTE_SECURITY)       += -lrte_security
 _LDLIBS-$(CONFIG_RTE_LIBRTE_EVENTDEV)       += -lrte_eventdev
+_LDLIBS-$(CONFIG_RTE_LIBRTE_TIMER)          += -lrte_timer
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MEMPOOL)        += -lrte_mempool
 _LDLIBS-$(CONFIG_RTE_DRIVER_MEMPOOL_RING)   += -lrte_mempool_ring
 _LDLIBS-$(CONFIG_RTE_LIBRTE_RING)           += -lrte_ring
-- 
2.6.4