[PATCH v3 08/10] net/virtio: unmapping queue/irq when close device
From: Jianfeng Tan <hidden>
Date: 2017-01-16 14:46:34
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
When closing virtio devices, close eventfds, free the struct to store queue/irq mapping. Signed-off-by: Jianfeng Tan <redacted> --- drivers/net/virtio/virtio_ethdev.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 5030ed5..0aad295 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c@@ -593,16 +593,29 @@ virtio_alloc_queues(struct rte_eth_dev *dev) return 0; } +static void virtio_queues_unbind_intr(struct rte_eth_dev *dev); + static void virtio_dev_close(struct rte_eth_dev *dev) { struct virtio_hw *hw = dev->data->dev_private; + struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf; PMD_INIT_LOG(DEBUG, "virtio_dev_close"); /* reset the NIC */ if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) VTPCI_OPS(hw)->set_config_irq(hw, VIRTIO_MSI_NO_VECTOR); + if (intr_conf->rxq) + virtio_queues_unbind_intr(dev); + + if (intr_conf->lsc || intr_conf->rxq) { + rte_intr_disable(dev->intr_handle); + rte_intr_efd_disable(dev->intr_handle); + rte_free(dev->intr_handle->intr_vec); + dev->intr_handle->intr_vec = NULL; + } + vtpci_reset(hw); virtio_dev_free_mbufs(dev); virtio_free_queues(hw);
@@ -1233,6 +1246,19 @@ virtio_queues_bind_intr(struct rte_eth_dev *dev) return 0; } +static void +virtio_queues_unbind_intr(struct rte_eth_dev *dev) +{ + uint32_t i; + struct virtio_hw *hw = dev->data->dev_private; + + PMD_INIT_LOG(INFO, "queue/interrupt unbinding\n"); + for (i = 0; i < dev->data->nb_rx_queues; ++i) + VTPCI_OPS(hw)->set_queue_irq(hw, + hw->vqs[i * VTNET_CQ], + VIRTIO_MSI_NO_VECTOR); +} + static int virtio_configure_intr(struct rte_eth_dev *dev) {
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2.7.4