@@ -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,