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From: "McDaniel, Timothy" <timothy.mcdaniel@intel.com>
To: jerinj@marvell.com
Cc: mattias.ronnblom@ericsson.com, dev@dpdk.org, gage.eads@intel.com,
	harry.van.haaren@intel.com, "McDaniel,
	Timothy" <timothy.mcdaniel@intel.com>
Subject: [dpdk-dev] [PATCH 27/27] event/dlb: add eventdev_stop and eventdev_close
Date: Thu, 30 Jul 2020 14:50:14 -0500
Message-ID: <1596138614-17409-28-git-send-email-timothy.mcdaniel@intel.com> (raw)
In-Reply-To: <1596138614-17409-1-git-send-email-timothy.mcdaniel@intel.com>

From: "McDaniel, Timothy" <timothy.mcdaniel@intel.com>

Change-Id: Iff64ba83ead496b3dedeaf323ee09bce1f631a6f
Signed-off-by: McDaniel, Timothy <timothy.mcdaniel@intel.com>
---
 drivers/event/dlb/dlb.c |  263 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 263 insertions(+)

diff --git a/drivers/event/dlb/dlb.c b/drivers/event/dlb/dlb.c
index 5adc95e..1498bdd 100644
--- a/drivers/event/dlb/dlb.c
+++ b/drivers/event/dlb/dlb.c
@@ -303,6 +303,23 @@ int dlb_string_to_int(int *result, const char *str)
 					const struct rte_event events[],
 					uint16_t num);
 
+void
+dlb_free_qe_mem(struct dlb_port *qm_port)
+{
+	if (qm_port == NULL)
+		return;
+
+	if (qm_port->qe4) {
+		rte_free(qm_port->qe4);
+		qm_port->qe4 = NULL;
+	}
+
+	if (qm_port->consume_qe) {
+		rte_free(qm_port->consume_qe);
+		qm_port->consume_qe = NULL;
+	}
+}
+
 int
 dlb_init_qe_mem(struct dlb_port *qm_port, char *mz_name)
 {
@@ -1856,6 +1873,250 @@ static inline void dlb_issue_int_arm_hcw(struct dlb_port *qm_port)
 	return 0;
 }
 
+static void
+dlb_flush_port(struct rte_eventdev *dev, int port_id)
+{
+	struct dlb_eventdev *dlb = dlb_pmd_priv(dev);
+	eventdev_stop_flush_t flush;
+	struct rte_event ev;
+	uint8_t dev_id;
+	void *arg;
+	int i;
+
+	flush = dev->dev_ops->dev_stop_flush;
+	dev_id = dev->data->dev_id;
+	arg = dev->data->dev_stop_flush_arg;
+
+	while (rte_event_dequeue_burst(dev_id, port_id, &ev, 1, 0)) {
+		if (flush)
+			flush(dev_id, ev, arg);
+
+		if (dlb->ev_ports[port_id].qm_port.is_directed)
+			continue;
+
+		ev.op = RTE_EVENT_OP_RELEASE;
+
+		rte_event_enqueue_burst(dev_id, port_id, &ev, 1);
+	}
+
+	/* Enqueue any additional outstanding releases */
+	ev.op = RTE_EVENT_OP_RELEASE;
+
+	for (i = dlb->ev_ports[port_id].outstanding_releases; i > 0; i--)
+		rte_event_enqueue_burst(dev_id, port_id, &ev, 1);
+}
+
+static uint32_t
+dlb_get_ldb_queue_depth(struct dlb_eventdev *dlb,
+			struct dlb_eventdev_queue *queue)
+{
+	struct dlb_hw_dev *handle = &dlb->qm_instance;
+	struct dlb_get_ldb_queue_depth_args cfg;
+	struct dlb_cmd_response response;
+	int ret;
+
+	cfg.queue_id = queue->qm_queue.id;
+	cfg.response = (uintptr_t)&response;
+
+	ret = dlb_iface_get_ldb_queue_depth(handle, &cfg);
+	if (ret < 0) {
+		DLB_LOG_ERR("dlb: get_ldb_queue_depth ret=%d (driver status: %s)\n",
+			    ret, dlb_error_strings[response.status]);
+		return ret;
+	}
+
+	return response.id;
+}
+
+static uint32_t
+dlb_get_dir_queue_depth(struct dlb_eventdev *dlb,
+			struct dlb_eventdev_queue *queue)
+{
+	struct dlb_hw_dev *handle = &dlb->qm_instance;
+	struct dlb_get_dir_queue_depth_args cfg;
+	struct dlb_cmd_response response;
+	int ret;
+
+	cfg.queue_id = queue->qm_queue.id;
+	cfg.response = (uintptr_t)&response;
+
+	ret = dlb_iface_get_dir_queue_depth(handle, &cfg);
+	if (ret < 0) {
+		DLB_LOG_ERR("dlb: get_dir_queue_depth ret=%d (driver status: %s)\n",
+			    ret, dlb_error_strings[response.status]);
+		return ret;
+	}
+
+	return response.id;
+}
+
+uint32_t
+dlb_get_queue_depth(struct dlb_eventdev *dlb,
+		    struct dlb_eventdev_queue *queue)
+{
+	if (queue->qm_queue.is_directed)
+		return dlb_get_dir_queue_depth(dlb, queue);
+	else
+		return dlb_get_ldb_queue_depth(dlb, queue);
+}
+
+static bool
+dlb_queue_is_empty(struct dlb_eventdev *dlb,
+		   struct dlb_eventdev_queue *queue)
+{
+	return dlb_get_queue_depth(dlb, queue) == 0;
+}
+
+static bool
+dlb_linked_queues_empty(struct dlb_eventdev *dlb)
+{
+	int i;
+
+	for (i = 0; i < dlb->num_queues; i++) {
+		if (dlb->ev_queues[i].num_links == 0)
+			continue;
+		if (!dlb_queue_is_empty(dlb, &dlb->ev_queues[i]))
+			return false;
+	}
+
+	return true;
+}
+
+static bool
+dlb_queues_empty(struct dlb_eventdev *dlb)
+{
+	int i;
+
+	for (i = 0; i < dlb->num_queues; i++) {
+		if (!dlb_queue_is_empty(dlb, &dlb->ev_queues[i]))
+			return false;
+	}
+
+	return true;
+}
+
+void
+dlb_drain(struct rte_eventdev *dev)
+{
+	struct dlb_eventdev *dlb = dlb_pmd_priv(dev);
+	struct dlb_eventdev_port *ev_port = NULL;
+	uint8_t dev_id;
+	int i;
+
+	dev_id = dev->data->dev_id;
+
+	while (!dlb_linked_queues_empty(dlb)) {
+		/* Flush all the ev_ports, which will drain all their connected
+		 * queues.
+		 */
+		for (i = 0; i < dlb->num_ports; i++)
+			dlb_flush_port(dev, i);
+	}
+
+	/* The queues are empty, but there may be events left in the ports. */
+	for (i = 0; i < dlb->num_ports; i++)
+		dlb_flush_port(dev, i);
+
+	/* If the domain's queues are empty, we're done. */
+	if (dlb_queues_empty(dlb))
+		return;
+
+	/* Else, there must be at least one unlinked load-balanced queue.
+	 * Select a load-balanced port with which to drain the unlinked
+	 * queue(s).
+	 */
+	for (i = 0; i < dlb->num_ports; i++) {
+		ev_port = &dlb->ev_ports[i];
+
+		if (!ev_port->qm_port.is_directed)
+			break;
+	}
+
+	if (i == dlb->num_ports) {
+		DLB_LOG_ERR("internal error: no LDB ev_ports\n");
+		return;
+	}
+
+	rte_errno = 0;
+	rte_event_port_unlink(dev_id, ev_port->id, NULL, 0);
+
+	if (rte_errno) {
+		DLB_LOG_ERR("internal error: failed to unlink ev_port %d\n",
+			    ev_port->id);
+		return;
+	}
+
+	for (i = 0; i < dlb->num_queues; i++) {
+		uint8_t qid, prio;
+		int ret;
+
+		if (dlb_queue_is_empty(dlb, &dlb->ev_queues[i]))
+			continue;
+
+		qid = i;
+		prio = 0;
+
+		/* Link the ev_port to the queue */
+		ret = rte_event_port_link(dev_id, ev_port->id, &qid, &prio, 1);
+		if (ret != 1) {
+			DLB_LOG_ERR("internal error: failed to link ev_port %d to queue %d\n",
+				    ev_port->id, qid);
+			return;
+		}
+
+		/* Flush the queue */
+		while (!dlb_queue_is_empty(dlb, &dlb->ev_queues[i]))
+			dlb_flush_port(dev, ev_port->id);
+
+		/* Drain any extant events in the ev_port. */
+		dlb_flush_port(dev, ev_port->id);
+
+		/* Unlink the ev_port from the queue */
+		ret = rte_event_port_unlink(dev_id, ev_port->id, &qid, 1);
+		if (ret != 1) {
+			DLB_LOG_ERR("internal error: failed to unlink ev_port %d to queue %d\n",
+				    ev_port->id, qid);
+			return;
+		}
+	}
+}
+
+static void
+dlb_eventdev_stop(struct rte_eventdev *dev)
+{
+	struct dlb_eventdev *dlb = dlb_pmd_priv(dev);
+
+	rte_spinlock_lock(&dlb->qm_instance.resource_lock);
+
+	if (dlb->run_state == DLB_RUN_STATE_STOPPED) {
+		DLB_LOG_DBG("Internal error: already stopped\n");
+		rte_spinlock_unlock(&dlb->qm_instance.resource_lock);
+		return;
+	} else if (dlb->run_state != DLB_RUN_STATE_STARTED) {
+		DLB_LOG_ERR("Internal error: bad state %d for dev_stop\n",
+			    (int)dlb->run_state);
+		rte_spinlock_unlock(&dlb->qm_instance.resource_lock);
+		return;
+	}
+
+	dlb->run_state = DLB_RUN_STATE_STOPPING;
+
+	rte_spinlock_unlock(&dlb->qm_instance.resource_lock);
+
+	dlb_drain(dev);
+
+	dlb->run_state = DLB_RUN_STATE_STOPPED;
+}
+
+static int
+dlb_eventdev_close(struct rte_eventdev *dev)
+{
+	dlb_hw_reset_sched_domain(dev, false);
+
+	return 0;
+}
+
+
 static inline int
 dlb_check_enqueue_sw_credits(struct dlb_eventdev *dlb,
 			     struct dlb_eventdev_port *ev_port)
@@ -3710,6 +3971,8 @@ static int dlb_num_dir_queues_setup(struct dlb_eventdev *dlb)
 		.dev_infos_get    = dlb_eventdev_info_get,
 		.dev_configure    = dlb_eventdev_configure,
 		.dev_start        = dlb_eventdev_start,
+		.dev_stop         = dlb_eventdev_stop,
+		.dev_close        = dlb_eventdev_close,
 		.queue_def_conf   = dlb_eventdev_queue_default_conf_get,
 		.queue_setup      = dlb_eventdev_queue_setup,
 		.queue_release    = dlb_eventdev_queue_release,
-- 
1.7.10


  parent reply index

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1593232671-5690-0-git-send-email-timothy.mcdaniel@intel.com>
2020-07-30 19:49 ` [dpdk-dev] [PATCH 00/27] Add Intel DLM PMD to 20.11 McDaniel, Timothy
2020-07-30 19:49   ` [dpdk-dev] [PATCH 01/27] eventdev: dlb upstream prerequisites McDaniel, Timothy
2020-08-11 17:44     ` Jerin Jacob
2020-10-17 19:03     ` [dpdk-dev] [PATCH v5 00/22] Add DLB PMD Timothy McDaniel
2020-10-17 19:03       ` [dpdk-dev] [PATCH v5 01/22] event/dlb: add documentation and meson infrastructure Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:03       ` [dpdk-dev] [PATCH v5 02/22] event/dlb: add dynamic logging Timothy McDaniel
2020-10-17 19:03       ` [dpdk-dev] [PATCH v5 03/22] event/dlb: add private data structures and constants Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:03       ` [dpdk-dev] [PATCH v5 04/22] event/dlb: add definitions shared with LKM or shared code Timothy McDaniel
2020-10-17 19:03       ` [dpdk-dev] [PATCH v5 05/22] event/dlb: add inline functions Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 06/22] event/dlb: add probe Timothy McDaniel
2020-10-18 12:49         ` Jerin Jacob
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 07/22] event/dlb: add xstats Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 08/22] event/dlb: add infos get and configure Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 09/22] event/dlb: add queue and port default conf Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 10/22] event/dlb: add queue setup Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 11/22] event/dlb: add port setup Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 12/22] event/dlb: add port link Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 13/22] event/dlb: add port unlink and port unlinks in progress Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 14/22] event/dlb: add eventdev start Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 15/22] event/dlb: add enqueue and its burst variants Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 16/22] event/dlb: add dequeue " Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 17/22] event/dlb: add eventdev stop and close Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 18/22] event/dlb: add PMD's token pop public interface Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 19/22] event/dlb: add PMD self-tests Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 20/22] event/dlb: add queue and port release Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 21/22] event/dlb: add timeout ticks entry point Timothy McDaniel
2020-10-17 19:04       ` [dpdk-dev] [PATCH v5 22/22] doc: Add new DLB eventdev driver to relnotes Timothy McDaniel
2020-10-20 20:06         ` Eads, Gage
2020-10-23 18:32     ` [dpdk-dev] [PATCH v6 00/23] Add DLB PMD Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 01/23] event/dlb: add documentation and meson infrastructure Timothy McDaniel
2020-10-24 13:05         ` Jerin Jacob
2020-10-26 16:02           ` McDaniel, Timothy
2020-10-24 14:05         ` Thomas Monjalon
2020-10-26 16:12           ` McDaniel, Timothy
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 02/23] event/dlb: add dynamic logging Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 03/23] event/dlb: add private data structures and constants Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 04/23] event/dlb: add definitions shared with LKM or shared code Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 05/23] event/dlb: add inline functions Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 06/23] event/dlb: add eventdev probe Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 07/23] event/dlb: add flexible interface Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 08/23] event/dlb: add probe-time hardware init Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 09/23] event/dlb: add xstats Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 10/23] event/dlb: add infos get and configure Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 11/23] event/dlb: add queue and port default conf Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 12/23] event/dlb: add queue setup Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 13/23] event/dlb: add port setup Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 14/23] event/dlb: add port link Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 15/23] event/dlb: add port unlink and port unlinks in progress Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 16/23] event/dlb: add eventdev start Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 17/23] event/dlb: add enqueue and its burst variants Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 18/23] event/dlb: add dequeue " Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 19/23] event/dlb: add eventdev stop and close Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 20/23] event/dlb: add PMD's token pop public interface Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 21/23] event/dlb: add PMD self-tests Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 22/23] event/dlb: add queue and port release Timothy McDaniel
2020-10-23 18:32       ` [dpdk-dev] [PATCH v6 23/23] event/dlb: add timeout ticks entry point Timothy McDaniel
2020-07-30 19:49   ` [dpdk-dev] [PATCH 02/27] eventdev: do not pass disable_implicit_release bit to trace macro McDaniel, Timothy
2020-08-11 17:48     ` Jerin Jacob
2020-07-30 19:49   ` [dpdk-dev] [PATCH 03/27] event/dlb: add shared code version 10.7.9 McDaniel, Timothy
2020-08-11 18:22     ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2020-07-30 19:49   ` [dpdk-dev] [PATCH 04/27] event/dlb: add make and meson build infrastructure McDaniel, Timothy
2020-08-11 18:24     ` Jerin Jacob
2020-07-30 19:49   ` [dpdk-dev] [PATCH 05/27] event/dlb: add DLB documentation McDaniel, Timothy
2020-08-11 18:26     ` Jerin Jacob
2020-07-30 19:49   ` [dpdk-dev] [PATCH 06/27] event/dlb: add dynamic logging McDaniel, Timothy
2020-08-11 18:27     ` Jerin Jacob
2020-07-30 19:49   ` [dpdk-dev] [PATCH 07/27] event/dlb: add private data structures and constants McDaniel, Timothy
2020-07-30 19:49   ` [dpdk-dev] [PATCH 08/27] event/dlb: add definitions shared with LKM or shared code McDaniel, Timothy
2020-07-30 19:49   ` [dpdk-dev] [PATCH 09/27] event/dlb: add inline functions used in multiple files McDaniel, Timothy
2020-07-30 19:49   ` [dpdk-dev] [PATCH 10/27] event/dlb: add PFPMD-specific interface layer to shared code McDaniel, Timothy
2020-07-30 19:49   ` [dpdk-dev] [PATCH 11/27] event/dlb: add flexible PMD to device interfaces McDaniel, Timothy
2020-07-30 19:49   ` [dpdk-dev] [PATCH 12/27] event/dlb: add the PMD's public interfaces McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 13/27] event/dlb: add xstats support McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 14/27] event/dlb: add PMD self-tests McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 15/27] event/dlb: add probe McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 16/27] event/dlb: add infos_get and configure McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 17/27] event/dlb: add queue_def_conf and port_def_conf McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 18/27] event/dlb: add queue setup McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 19/27] event/dlb: add port_setup McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 20/27] event/dlb: add port_link McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 21/27] event/dlb: add queue_release and port_release McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 22/27] event/dlb: add port_unlink and port_unlinks_in_progress McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 23/27] event/dlb: add eventdev_start McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 24/27] event/dlb: add timeout_ticks, dump, xstats, and selftest McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 25/27] event/dlb: add enqueue and its burst variants McDaniel, Timothy
2020-07-30 19:50   ` [dpdk-dev] [PATCH 26/27] event/dlb: add dequeue, dequeue_burst, and variants McDaniel, Timothy
2020-07-30 19:50   ` McDaniel, Timothy [this message]
2020-06-27  4:37 [dpdk-dev] [PATCH 00/27] event/dlb Intel DLB PMD Tim McDaniel
2020-06-27  4:37 ` [dpdk-dev] [PATCH 27/27] event/dlb: add eventdev_stop and eventdev_close Tim McDaniel
  -- strict thread matches above, loose matches on Subject: below --
2020-06-12 21:24 [dpdk-dev] [PATCH 00/27] V1 event/dlb add Intel DLB PMD McDaniel, Timothy
2020-06-12 21:24 ` [dpdk-dev] [PATCH 27/27] event/dlb: add eventdev_stop and eventdev_close McDaniel, Timothy

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