net/dpaa2: support link status event
[dpdk.git] / drivers / net / dpaa2 / dpaa2_ethdev.c
index 429b3a0..72c9e67 100644 (file)
@@ -54,6 +54,8 @@
 
 static struct rte_dpaa2_driver rte_dpaa2_pmd;
 static int dpaa2_dev_uninit(struct rte_eth_dev *eth_dev);
+static int dpaa2_dev_link_update(struct rte_eth_dev *dev,
+                                int wait_to_complete);
 static int dpaa2_dev_set_link_up(struct rte_eth_dev *dev);
 static int dpaa2_dev_set_link_down(struct rte_eth_dev *dev);
 static int dpaa2_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
@@ -344,6 +346,10 @@ dpaa2_eth_dev_configure(struct rte_eth_dev *dev)
                        return ret;
                }
        }
+
+       /* update the current status */
+       dpaa2_dev_link_update(dev, 0);
+
        return 0;
 }
 
@@ -419,6 +425,7 @@ dpaa2_dev_rx_queue_setup(struct rte_eth_dev *dev,
                /*enabling per rx queue congestion control */
                taildrop.threshold = CONG_THRESHOLD_RX_Q;
                taildrop.units = DPNI_CONGESTION_UNIT_BYTES;
+               taildrop.oal = CONG_RX_OAL;
                PMD_INIT_LOG(DEBUG, "Enabling Early Drop on queue = %d",
                             rx_queue_id);
                ret = dpni_set_taildrop(dpni, CMD_PRI_LOW, priv->token,
@@ -555,9 +562,87 @@ dpaa2_supported_ptypes_get(struct rte_eth_dev *dev)
        return NULL;
 }
 
+/**
+ * Dpaa2 link Interrupt handler
+ *
+ * @param param
+ *  The address of parameter (struct rte_eth_dev *) regsitered before.
+ *
+ * @return
+ *  void
+ */
+static void
+dpaa2_interrupt_handler(void *param)
+{
+       struct rte_eth_dev *dev = param;
+       struct dpaa2_dev_priv *priv = dev->data->dev_private;
+       struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
+       int ret;
+       int irq_index = DPNI_IRQ_INDEX;
+       unsigned int status = 0, clear = 0;
+
+       PMD_INIT_FUNC_TRACE();
+
+       if (dpni == NULL) {
+               RTE_LOG(ERR, PMD, "dpni is NULL");
+               return;
+       }
+
+       ret = dpni_get_irq_status(dpni, CMD_PRI_LOW, priv->token,
+                                 irq_index, &status);
+       if (unlikely(ret)) {
+               RTE_LOG(ERR, PMD, "Can't get irq status (err %d)", ret);
+               clear = 0xffffffff;
+               goto out;
+       }
+
+       if (status & DPNI_IRQ_EVENT_LINK_CHANGED) {
+               clear = DPNI_IRQ_EVENT_LINK_CHANGED;
+               dpaa2_dev_link_update(dev, 0);
+               /* calling all the apps registered for link status event */
+               _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC,
+                                             NULL, NULL);
+       }
+out:
+       ret = dpni_clear_irq_status(dpni, CMD_PRI_LOW, priv->token,
+                                   irq_index, clear);
+       if (unlikely(ret))
+               RTE_LOG(ERR, PMD, "Can't clear irq status (err %d)", ret);
+}
+
+static int
+dpaa2_eth_setup_irqs(struct rte_eth_dev *dev, int enable)
+{
+       int err = 0;
+       struct dpaa2_dev_priv *priv = dev->data->dev_private;
+       struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
+       int irq_index = DPNI_IRQ_INDEX;
+       unsigned int mask = DPNI_IRQ_EVENT_LINK_CHANGED;
+
+       PMD_INIT_FUNC_TRACE();
+
+       err = dpni_set_irq_mask(dpni, CMD_PRI_LOW, priv->token,
+                               irq_index, mask);
+       if (err < 0) {
+               PMD_INIT_LOG(ERR, "Error: dpni_set_irq_mask():%d (%s)", err,
+                            strerror(-err));
+               return err;
+       }
+
+       err = dpni_set_irq_enable(dpni, CMD_PRI_LOW, priv->token,
+                                 irq_index, enable);
+       if (err < 0)
+               PMD_INIT_LOG(ERR, "Error: dpni_set_irq_enable():%d (%s)", err,
+                            strerror(-err));
+
+       return err;
+}
+
 static int
 dpaa2_dev_start(struct rte_eth_dev *dev)
 {
+       struct rte_device *rdev = dev->device;
+       struct rte_dpaa2_device *dpaa2_dev;
        struct rte_eth_dev_data *data = dev->data;
        struct dpaa2_dev_priv *priv = data->dev_private;
        struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
@@ -567,6 +652,10 @@ dpaa2_dev_start(struct rte_eth_dev *dev)
        struct dpni_queue_id qid;
        struct dpaa2_queue *dpaa2_q;
        int ret, i;
+       struct rte_intr_handle *intr_handle;
+
+       dpaa2_dev = container_of(rdev, struct rte_dpaa2_device, device);
+       intr_handle = &dpaa2_dev->intr_handle;
 
        PMD_INIT_FUNC_TRACE();
 
@@ -646,6 +735,24 @@ dpaa2_dev_start(struct rte_eth_dev *dev)
        if (priv->max_vlan_filters)
                dpaa2_vlan_offload_set(dev, ETH_VLAN_FILTER_MASK);
 
+       /* if the interrupts were configured on this devices*/
+       if (intr_handle && (intr_handle->fd) &&
+           (dev->data->dev_conf.intr_conf.lsc != 0)) {
+               /* Registering LSC interrupt handler */
+               rte_intr_callback_register(intr_handle,
+                                          dpaa2_interrupt_handler,
+                                          (void *)dev);
+
+               /* enable vfio intr/eventfd mapping
+                * Interrupt index 0 is required, so we can not use
+                * rte_intr_enable.
+                */
+               rte_dpaa2_intr_enable(intr_handle, DPNI_IRQ_INDEX);
+
+               /* enable dpni_irqs */
+               dpaa2_eth_setup_irqs(dev, 1);
+       }
+
        return 0;
 }
 
@@ -660,9 +767,25 @@ dpaa2_dev_stop(struct rte_eth_dev *dev)
        struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
        int ret;
        struct rte_eth_link link;
+       struct rte_intr_handle *intr_handle = dev->intr_handle;
 
        PMD_INIT_FUNC_TRACE();
 
+       /* reset interrupt callback  */
+       if (intr_handle && (intr_handle->fd) &&
+           (dev->data->dev_conf.intr_conf.lsc != 0)) {
+               /*disable dpni irqs */
+               dpaa2_eth_setup_irqs(dev, 0);
+
+               /* disable vfio intr before callback unregister */
+               rte_dpaa2_intr_disable(intr_handle, DPNI_IRQ_INDEX);
+
+               /* Unregistering LSC interrupt handler */
+               rte_intr_callback_unregister(intr_handle,
+                                            dpaa2_interrupt_handler,
+                                            (void *)dev);
+       }
+
        dpaa2_dev_set_link_down(dev);
 
        ret = dpni_disable(dpni, CMD_PRI_LOW, priv->token);
@@ -941,7 +1064,7 @@ void dpaa2_dev_stats_get(struct rte_eth_dev *dev,
 
        /*Get Counters from page_0*/
        retcode = dpni_get_statistics(dpni, CMD_PRI_LOW, priv->token,
-                                     page0, &value);
+                                     page0, 0, &value);
        if (retcode)
                goto err;
 
@@ -950,7 +1073,7 @@ void dpaa2_dev_stats_get(struct rte_eth_dev *dev,
 
        /*Get Counters from page_1*/
        retcode = dpni_get_statistics(dpni, CMD_PRI_LOW, priv->token,
-                                     page1, &value);
+                                     page1, 0, &value);
        if (retcode)
                goto err;
 
@@ -959,7 +1082,7 @@ void dpaa2_dev_stats_get(struct rte_eth_dev *dev,
 
        /*Get Counters from page_2*/
        retcode = dpni_get_statistics(dpni, CMD_PRI_LOW, priv->token,
-                                     page2, &value);
+                                     page2, 0, &value);
        if (retcode)
                goto err;
 
@@ -1384,22 +1507,19 @@ dpaa2_dev_init(struct rte_eth_dev *eth_dev)
                goto init_err;
        }
 
-       priv->num_tc = attr.num_tcs;
+       priv->num_rx_tc = attr.num_rx_tcs;
 
-       /* Resetting the "num_rx_vqueues" to equal number of queues in first TC
+       /* Resetting the "num_rx_queues" to equal number of queues in first TC
         * as only one TC is supported on Rx Side. Once Multiple TCs will be
         * in use for Rx processing then this will be changed or removed.
         */
        priv->nb_rx_queues = attr.num_queues;
 
-       /* TODO:Using hard coded value for number of TX queues due to dependency
-        * in MC.
-        */
-       priv->nb_tx_queues = 8;
+       /* Using number of TX queues as number of TX TCs */
+       priv->nb_tx_queues = attr.num_tx_tcs;
 
-       PMD_INIT_LOG(DEBUG, "num TC - RX %d", priv->num_tc);
-       PMD_INIT_LOG(DEBUG, "nb_tx_queues %d", priv->nb_tx_queues);
-       PMD_INIT_LOG(DEBUG, "nb_rx_queues %d", priv->nb_rx_queues);
+       PMD_DRV_LOG(DEBUG, "RX-TC= %d, nb_rx_queues= %d, nb_tx_queues=%d",
+                   priv->num_tc, priv->nb_rx_queues, priv->nb_tx_queues);
 
        priv->hw = dpni_dev;
        priv->hw_id = hw_id;
@@ -1460,6 +1580,7 @@ dpaa2_dev_init(struct rte_eth_dev *eth_dev)
        }
 
        eth_dev->dev_ops = &dpaa2_ethdev_ops;
+       eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
 
        eth_dev->rx_pkt_burst = dpaa2_dev_prefetch_rx;
        eth_dev->tx_pkt_burst = dpaa2_dev_tx;
@@ -1588,7 +1709,7 @@ rte_dpaa2_remove(struct rte_dpaa2_device *dpaa2_dev)
 }
 
 static struct rte_dpaa2_driver rte_dpaa2_pmd = {
-       .drv_type = DPAA2_MC_DPNI_DEVID,
+       .drv_type = DPAA2_ETH,
        .probe = rte_dpaa2_probe,
        .remove = rte_dpaa2_remove,
 };