/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2017 6WIND S.A.
- * Copyright 2017 Mellanox.
+ * Copyright 2017 Mellanox Technologies, Ltd
*/
#include <unistd.h>
return ret;
}
}
+ /*
+ * Propagate multicast MAC addresses to sub-devices,
+ * if non zero number of addresses is set.
+ * The condition is required to avoid breakage of failsafe
+ * for sub-devices which do not support the operation
+ * if the feature is really not used.
+ */
+ if (PRIV(dev)->nb_mcast_addr > 0) {
+ DEBUG("Configuring multicast MAC addresses");
+ ret = rte_eth_dev_set_mc_addr_list(PORT_ID(sdev),
+ PRIV(dev)->mcast_addrs,
+ PRIV(dev)->nb_mcast_addr);
+ if (ret) {
+ ERROR("Failed to apply multicast MAC addresses");
+ return ret;
+ }
+ }
/* VLAN filter */
vfc1 = &dev->data->vlan_filter_conf;
vfc2 = &edev->data->vlan_filter_conf;
DEBUG("Creating flow #%" PRIu32, i++);
flow->flows[SUB_ID(sdev)] =
rte_flow_create(PORT_ID(sdev),
- &flow->fd->attr,
- flow->fd->items,
- flow->fd->actions,
+ flow->rule.attr,
+ flow->rule.pattern,
+ flow->rule.actions,
&ferror);
ret = rte_errno;
if (ret)
sdev->state = DEV_ACTIVE;
/* fallthrough */
case DEV_ACTIVE:
+ failsafe_eth_dev_unregister_callbacks(sdev);
rte_eth_dev_close(PORT_ID(sdev));
sdev->state = DEV_PROBED;
/* fallthrough */
case DEV_PROBED:
- ret = rte_eal_hotplug_remove(sdev->bus->name,
- sdev->dev->name);
+ ret = rte_dev_remove(sdev->dev);
if (ret) {
ERROR("Bus detach failed for sub_device %u",
SUB_ID(sdev));
return 1;
}
+void
+failsafe_eth_dev_unregister_callbacks(struct sub_device *sdev)
+{
+ int ret;
+
+ if (sdev == NULL)
+ return;
+ if (sdev->rmv_callback) {
+ ret = rte_eth_dev_callback_unregister(PORT_ID(sdev),
+ RTE_ETH_EVENT_INTR_RMV,
+ failsafe_eth_rmv_event_callback,
+ sdev);
+ if (ret)
+ WARN("Failed to unregister RMV callback for sub_device"
+ " %d", SUB_ID(sdev));
+ sdev->rmv_callback = 0;
+ }
+ if (sdev->lsc_callback) {
+ ret = rte_eth_dev_callback_unregister(PORT_ID(sdev),
+ RTE_ETH_EVENT_INTR_LSC,
+ failsafe_eth_lsc_event_callback,
+ sdev);
+ if (ret)
+ WARN("Failed to unregister LSC callback for sub_device"
+ " %d", SUB_ID(sdev));
+ sdev->lsc_callback = 0;
+ }
+}
+
void
failsafe_dev_remove(struct rte_eth_dev *dev)
{
FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
if (sdev->remove && fs_rxtx_clean(sdev)) {
+ if (fs_lock(dev, 1) != 0)
+ return;
fs_dev_stats_save(sdev);
fs_dev_remove(sdev);
+ fs_unlock(dev, 1);
+ }
+}
+
+static int
+failsafe_eth_dev_rx_queues_sync(struct rte_eth_dev *dev)
+{
+ struct rxq *rxq;
+ int ret;
+ uint16_t i;
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ rxq = dev->data->rx_queues[i];
+
+ if (rxq->info.conf.rx_deferred_start &&
+ dev->data->rx_queue_state[i] ==
+ RTE_ETH_QUEUE_STATE_STARTED) {
+ /*
+ * The subdevice Rx queue does not launch on device
+ * start if deferred start flag is set. It needs to be
+ * started manually in case an appropriate failsafe Rx
+ * queue has been started earlier.
+ */
+ ret = dev->dev_ops->rx_queue_start(dev, i);
+ if (ret) {
+ ERROR("Could not synchronize Rx queue %d", i);
+ return ret;
+ }
+ } else if (dev->data->rx_queue_state[i] ==
+ RTE_ETH_QUEUE_STATE_STOPPED) {
+ /*
+ * The subdevice Rx queue needs to be stopped manually
+ * in case an appropriate failsafe Rx queue has been
+ * stopped earlier.
+ */
+ ret = dev->dev_ops->rx_queue_stop(dev, i);
+ if (ret) {
+ ERROR("Could not synchronize Rx queue %d", i);
+ return ret;
+ }
+ }
+ }
+ return 0;
+}
+
+static int
+failsafe_eth_dev_tx_queues_sync(struct rte_eth_dev *dev)
+{
+ struct txq *txq;
+ int ret;
+ uint16_t i;
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+
+ if (txq->info.conf.tx_deferred_start &&
+ dev->data->tx_queue_state[i] ==
+ RTE_ETH_QUEUE_STATE_STARTED) {
+ /*
+ * The subdevice Tx queue does not launch on device
+ * start if deferred start flag is set. It needs to be
+ * started manually in case an appropriate failsafe Tx
+ * queue has been started earlier.
+ */
+ ret = dev->dev_ops->tx_queue_start(dev, i);
+ if (ret) {
+ ERROR("Could not synchronize Tx queue %d", i);
+ return ret;
+ }
+ } else if (dev->data->tx_queue_state[i] ==
+ RTE_ETH_QUEUE_STATE_STOPPED) {
+ /*
+ * The subdevice Tx queue needs to be stopped manually
+ * in case an appropriate failsafe Tx queue has been
+ * stopped earlier.
+ */
+ ret = dev->dev_ops->tx_queue_stop(dev, i);
+ if (ret) {
+ ERROR("Could not synchronize Tx queue %d", i);
+ return ret;
+ }
}
+ }
+ return 0;
}
int
if (PRIV(dev)->state < DEV_STARTED)
return 0;
ret = dev->dev_ops->dev_start(dev);
+ if (ret)
+ goto err_remove;
+ ret = failsafe_eth_dev_rx_queues_sync(dev);
+ if (ret)
+ goto err_remove;
+ ret = failsafe_eth_dev_tx_queues_sync(dev);
if (ret)
goto err_remove;
return 0;
{
struct sub_device *sdev = cb_arg;
+ fs_lock(sdev->fs_dev, 0);
/* Switch as soon as possible tx_dev. */
fs_switch_dev(sdev->fs_dev, sdev);
/* Use safe bursts in any case. */
- set_burst_fn(sdev->fs_dev, 1);
+ failsafe_set_burst_fn(sdev->fs_dev, 1);
/*
* Async removal, the sub-PMD will try to unregister
* the callback at the source of the current thread context.
*/
sdev->remove = 1;
+ fs_unlock(sdev->fs_dev, 0);
return 0;
}
else
return 0;
}
+
+/* Take sub-device ownership before it becomes exposed to the application. */
+int
+failsafe_eth_new_event_callback(uint16_t port_id,
+ enum rte_eth_event_type event __rte_unused,
+ void *cb_arg, void *out __rte_unused)
+{
+ struct rte_eth_dev *fs_dev = cb_arg;
+ struct sub_device *sdev;
+ struct rte_eth_dev *dev = &rte_eth_devices[port_id];
+ uint8_t i;
+
+ FOREACH_SUBDEV_STATE(sdev, i, fs_dev, DEV_PARSED) {
+ if (sdev->state >= DEV_PROBED)
+ continue;
+ if (strcmp(sdev->devargs.name, dev->device->name) != 0)
+ continue;
+ rte_eth_dev_owner_set(port_id, &PRIV(fs_dev)->my_owner);
+ /* The actual owner will be checked after the port probing. */
+ break;
+ }
+ return 0;
+}