From: "McDaniel, Timothy" <timothy.mcdan...@intel.com> Change-Id: I9dcf8cf95c1001e09ab3e44e3fbd2ccbf0ddec72 Signed-off-by: McDaniel, Timothy <timothy.mcdan...@intel.com> --- drivers/event/dlb/dlb.c | 142 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+)
diff --git a/drivers/event/dlb/dlb.c b/drivers/event/dlb/dlb.c index ed681a3..7a78d59 100644 --- a/drivers/event/dlb/dlb.c +++ b/drivers/event/dlb/dlb.c @@ -1163,6 +1163,72 @@ int dlb_string_to_int(int *result, const char *str) *dev_info = evdev_dlb_default_info; } +static int +dlb_eventdev_reapply_configuration(struct rte_eventdev *dev); + +static int +dlb_eventdev_apply_port_links(struct rte_eventdev *dev); + +static int +dlb_eventdev_start(struct rte_eventdev *dev) +{ + struct dlb_eventdev *dlb = dlb_pmd_priv(dev); + struct dlb_hw_dev *handle = &dlb->qm_instance; + struct dlb_start_domain_args cfg; + struct dlb_cmd_response response; + int ret, i; + + rte_spinlock_lock(&dlb->qm_instance.resource_lock); + if (dlb->run_state != DLB_RUN_STATE_STOPPED) { + DLB_LOG_ERR("bad state %d for dev_start\n", + (int)dlb->run_state); + rte_spinlock_unlock(&dlb->qm_instance.resource_lock); + return -EINVAL; + } + dlb->run_state = DLB_RUN_STATE_STARTING; + rte_spinlock_unlock(&dlb->qm_instance.resource_lock); + + /* If the device was configured more than once, some event ports and/or + * queues may need to be reconfigured. + */ + ret = dlb_eventdev_reapply_configuration(dev); + if (ret) + return ret; + + /* The DLB PMD delays port links until the device is started. */ + ret = dlb_eventdev_apply_port_links(dev); + if (ret) + return ret; + + cfg.response = (uintptr_t)&response; + + for (i = 0; i < dlb->num_ports; i++) { + if (!dlb->ev_ports[i].setup_done) { + DLB_LOG_ERR("dlb: port %d not setup", i); + return -ESTALE; + } + } + + for (i = 0; i < dlb->num_queues; i++) { + if (dlb->ev_queues[i].num_links == 0) { + DLB_LOG_ERR("dlb: queue %d is not linked", i); + return -ENOLINK; + } + } + + ret = dlb_iface_sched_domain_start(handle, &cfg); + if (ret < 0) { + DLB_LOG_ERR("dlb: sched_domain_start ret=%d (driver status: %s)\n", + ret, dlb_error_strings[response.status]); + return ret; + } + + dlb->run_state = DLB_RUN_STATE_STARTED; + DLB_LOG_DBG("dlb: sched_domain_start completed OK\n"); + + return 0; +} + static inline int dlb_check_enqueue_sw_credits(struct dlb_eventdev *dlb, struct dlb_eventdev_port *ev_port) @@ -2057,6 +2123,40 @@ int dlb_string_to_int(int *result, const char *str) } static int +dlb_eventdev_apply_port_links(struct rte_eventdev *dev) +{ + struct dlb_eventdev *dlb = dlb_pmd_priv(dev); + int i; + + /* Perform requested port->queue links */ + for (i = 0; i < dlb->num_ports; i++) { + struct dlb_eventdev_port *ev_port = &dlb->ev_ports[i]; + int j; + + for (j = 0; j < DLB_MAX_NUM_QIDS_PER_LDB_CQ; j++) { + struct dlb_eventdev_queue *ev_queue; + uint8_t prio, queue_id; + + if (!ev_port->link[j].valid) + continue; + + prio = ev_port->link[j].priority; + queue_id = ev_port->link[j].queue_id; + + if (dlb_validate_port_link(ev_port, queue_id, true, j)) + return -EINVAL; + + ev_queue = &dlb->ev_queues[queue_id]; + + if (dlb_do_port_link(dev, ev_queue, ev_port, prio)) + return -EINVAL; + } + } + + return 0; +} + +static int dlb_eventdev_port_link(struct rte_eventdev *dev, void *event_port, const uint8_t queues[], const uint8_t priorities[], uint16_t nb_links) @@ -2537,6 +2637,47 @@ static int dlb_num_dir_queues_setup(struct dlb_eventdev *dlb) } static int +dlb_eventdev_reapply_configuration(struct rte_eventdev *dev) +{ + struct dlb_eventdev *dlb = dlb_pmd_priv(dev); + int ret, i; + + /* If an event queue or port was previously configured, but hasn't been + * reconfigured, reapply its original configuration. + */ + for (i = 0; i < dlb->num_queues; i++) { + struct dlb_eventdev_queue *ev_queue; + + ev_queue = &dlb->ev_queues[i]; + + if (ev_queue->qm_queue.config_state != DLB_PREV_CONFIGURED) + continue; + + ret = dlb_eventdev_queue_setup(dev, i, &ev_queue->conf); + if (ret < 0) { + DLB_LOG_ERR("dlb: failed to reconfigure queue %d", i); + return ret; + } + } + + for (i = 0; i < dlb->num_ports; i++) { + struct dlb_eventdev_port *ev_port = &dlb->ev_ports[i]; + + if (ev_port->qm_port.config_state != DLB_PREV_CONFIGURED) + continue; + + ret = dlb_eventdev_port_setup(dev, i, &ev_port->conf); + if (ret < 0) { + DLB_LOG_ERR("dlb: failed to reconfigure ev_port %d", + i); + return ret; + } + } + + return 0; +} + +static int dlb_eventdev_port_unlink(struct rte_eventdev *dev, void *event_port, uint8_t queues[], uint16_t nb_unlinks) { @@ -2738,6 +2879,7 @@ static int dlb_num_dir_queues_setup(struct dlb_eventdev *dlb) static struct rte_eventdev_ops dlb_eventdev_entry_ops = { .dev_infos_get = dlb_eventdev_info_get, .dev_configure = dlb_eventdev_configure, + .dev_start = dlb_eventdev_start, .queue_def_conf = dlb_eventdev_queue_default_conf_get, .queue_setup = dlb_eventdev_queue_setup, .queue_release = dlb_eventdev_queue_release, -- 1.7.10