Support to stop, close and reset device.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
drivers/net/ngbe/ngbe_ethdev.c | 123 ++++++++++++++++++++++++++++++++-
drivers/net/ngbe/ngbe_ethdev.h | 7 ++
drivers/net/ngbe/ngbe_rxtx.c | 47 +++++++++++++
3 files changed, 175 insertions(+), 2 deletions(-)
@@ -531,20 +531,136 @@ ngbe_dev_start(struct rte_eth_dev *dev)
error:
PMD_INIT_LOG(ERR, "failure in dev start: %d", err);
+ ngbe_dev_clear_queues(dev);
return -EIO;
}
+/*
+ * Stop device: disable rx and tx functions to allow for reconfiguring.
+ */
+static int
+ngbe_dev_stop(struct rte_eth_dev *dev)
+{
+ struct rte_eth_link link;
+ struct ngbe_hw *hw = NGBE_DEV_HW(dev);
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+ struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+
+ if (hw->adapter_stopped)
+ return 0;
+
+ PMD_INIT_FUNC_TRACE();
+
+ if ((hw->sub_system_id & NGBE_OEM_MASK) == NGBE_LY_M88E1512_SFP ||
+ (hw->sub_system_id & NGBE_OEM_MASK) == NGBE_LY_YT8521S_SFP) {
+ /* gpio0 is used to power on/off control*/
+ wr32(hw, NGBE_GPIODATA, NGBE_GPIOBIT_0);
+ }
+
+ /* disable interrupts */
+ ngbe_disable_intr(hw);
+
+ /* reset the NIC */
+ ngbe_pf_reset_hw(hw);
+ hw->adapter_stopped = 0;
+
+ /* stop adapter */
+ ngbe_stop_hw(hw);
+
+ ngbe_dev_clear_queues(dev);
+
+ /* Clear stored conf */
+ dev->data->scattered_rx = 0;
+
+ /* Clear recorded link status */
+ memset(&link, 0, sizeof(link));
+ rte_eth_linkstatus_set(dev, &link);
+
+ if (!rte_intr_allow_others(intr_handle))
+ /* resume to the default handler */
+ rte_intr_callback_register(intr_handle,
+ ngbe_dev_interrupt_handler,
+ (void *)dev);
+
+ /* Clean datapath event and queue/vec mapping */
+ rte_intr_efd_disable(intr_handle);
+ if (intr_handle->intr_vec != NULL) {
+ rte_free(intr_handle->intr_vec);
+ intr_handle->intr_vec = NULL;
+ }
+
+ hw->adapter_stopped = true;
+ dev->data->dev_started = 0;
+
+ return 0;
+}
+
/*
* Reset and stop device.
*/
static int
ngbe_dev_close(struct rte_eth_dev *dev)
{
+ struct ngbe_hw *hw = NGBE_DEV_HW(dev);
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+ struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+ int retries = 0;
+ int ret;
+
PMD_INIT_FUNC_TRACE();
- RTE_SET_USED(dev);
+ ngbe_pf_reset_hw(hw);
- return 0;
+ ret = ngbe_dev_stop(dev);
+
+ ngbe_dev_free_queues(dev);
+
+ /* reprogram the RAR[0] in case user changed it. */
+ ngbe_set_rar(hw, 0, hw->mac.addr, 0, true);
+
+ /* Unlock any pending hardware semaphore */
+ ngbe_swfw_lock_reset(hw);
+
+ /* disable uio intr before callback unregister */
+ rte_intr_disable(intr_handle);
+
+ do {
+ ret = rte_intr_callback_unregister(intr_handle,
+ ngbe_dev_interrupt_handler, dev);
+ if (ret >= 0 || ret == -ENOENT) {
+ break;
+ } else if (ret != -EAGAIN) {
+ PMD_INIT_LOG(ERR,
+ "intr callback unregister failed: %d",
+ ret);
+ }
+ rte_delay_ms(100);
+ } while (retries++ < (10 + NGBE_LINK_UP_TIME));
+
+ rte_free(dev->data->mac_addrs);
+ dev->data->mac_addrs = NULL;
+
+ rte_free(dev->data->hash_mac_addrs);
+ dev->data->hash_mac_addrs = NULL;
+
+ return ret;
+}
+
+/*
+ * Reset PF device.
+ */
+static int
+ngbe_dev_reset(struct rte_eth_dev *dev)
+{
+ int ret;
+
+ ret = eth_ngbe_dev_uninit(dev);
+ if (ret)
+ return ret;
+
+ ret = eth_ngbe_dev_init(dev, NULL);
+
+ return ret;
}
static int
@@ -1120,6 +1236,9 @@ static const struct eth_dev_ops ngbe_eth_dev_ops = {
.dev_configure = ngbe_dev_configure,
.dev_infos_get = ngbe_dev_info_get,
.dev_start = ngbe_dev_start,
+ .dev_stop = ngbe_dev_stop,
+ .dev_close = ngbe_dev_close,
+ .dev_reset = ngbe_dev_reset,
.link_update = ngbe_dev_link_update,
.dev_supported_ptypes_get = ngbe_dev_supported_ptypes_get,
.rx_queue_start = ngbe_dev_rx_queue_start,
@@ -61,6 +61,13 @@ struct ngbe_adapter {
#define NGBE_DEV_INTR(dev) \
(&((struct ngbe_adapter *)(dev)->data->dev_private)->intr)
+/*
+ * RX/TX function prototypes
+ */
+void ngbe_dev_clear_queues(struct rte_eth_dev *dev);
+
+void ngbe_dev_free_queues(struct rte_eth_dev *dev);
+
void ngbe_dev_rx_queue_release(void *rxq);
void ngbe_dev_tx_queue_release(void *txq);
@@ -2236,6 +2236,53 @@ ngbe_dev_rx_queue_setup(struct rte_eth_dev *dev,
return 0;
}
+void __rte_cold
+ngbe_dev_clear_queues(struct rte_eth_dev *dev)
+{
+ unsigned int i;
+ struct ngbe_adapter *adapter = NGBE_DEV_ADAPTER(dev);
+
+ PMD_INIT_FUNC_TRACE();
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ struct ngbe_tx_queue *txq = dev->data->tx_queues[i];
+
+ if (txq != NULL) {
+ txq->ops->release_mbufs(txq);
+ txq->ops->reset(txq);
+ }
+ }
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ struct ngbe_rx_queue *rxq = dev->data->rx_queues[i];
+
+ if (rxq != NULL) {
+ ngbe_rx_queue_release_mbufs(rxq);
+ ngbe_reset_rx_queue(adapter, rxq);
+ }
+ }
+}
+
+void
+ngbe_dev_free_queues(struct rte_eth_dev *dev)
+{
+ unsigned int i;
+
+ PMD_INIT_FUNC_TRACE();
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ ngbe_dev_rx_queue_release(dev->data->rx_queues[i]);
+ dev->data->rx_queues[i] = NULL;
+ }
+ dev->data->nb_rx_queues = 0;
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ ngbe_dev_tx_queue_release(dev->data->tx_queues[i]);
+ dev->data->tx_queues[i] = NULL;
+ }
+ dev->data->nb_tx_queues = 0;
+}
+
static int __rte_cold
ngbe_alloc_rx_queue_mbufs(struct ngbe_rx_queue *rxq)
{