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authorChristian Ehrhardt <christian.ehrhardt@canonical.com>2017-06-08 09:46:51 -0600
committerChristian Ehrhardt <christian.ehrhardt@canonical.com>2017-06-08 09:51:02 -0600
commitaab0c291a90f701b60f8c9a88cbcc265cba0ec8b (patch)
treebfa7bf9663cb9a518d81f18e3a2c792eee8fa1c8 /drivers/net/virtio/virtio_ethdev.c
parentce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff)
Imported Upstream version 16.11.2
Change-Id: I947038e46a2c747296dc7aa7522239733ca2f659 Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'drivers/net/virtio/virtio_ethdev.c')
-rw-r--r--drivers/net/virtio/virtio_ethdev.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index f5961ab7..452ad2a5 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -545,6 +545,9 @@ virtio_free_queues(struct virtio_hw *hw)
int queue_type;
uint16_t i;
+ if (hw->vqs == NULL)
+ return;
+
for (i = 0; i < nr_vq; i++) {
vq = hw->vqs[i];
if (!vq)
@@ -563,9 +566,11 @@ virtio_free_queues(struct virtio_hw *hw)
}
rte_free(vq);
+ hw->vqs[i] = NULL;
}
rte_free(hw->vqs);
+ hw->vqs = NULL;
}
static int
@@ -1210,11 +1215,11 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
rte_eth_copy_pci_info(eth_dev, pci_dev);
- /* If host does not support status then disable LSC */
- if (!vtpci_with_feature(hw, VIRTIO_NET_F_STATUS))
- eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
- else
+ /* If host does not support both status and MSI-X then disable LSC */
+ if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS) && hw->use_msix)
eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
+ else
+ eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
rx_func_get(eth_dev);
@@ -1550,9 +1555,6 @@ virtio_dev_start(struct rte_eth_dev *dev)
}
}
- /* Initialize Link state */
- virtio_dev_link_update(dev, 0);
-
/*Notify the backend
*Otherwise the tap backend might already stop its queue due to fullness.
*vhost backend will have no chance to be waked up
@@ -1582,6 +1584,11 @@ virtio_dev_start(struct rte_eth_dev *dev)
VIRTQUEUE_DUMP(txvq->vq);
}
+ hw->started = 1;
+
+ /* Initialize Link state */
+ virtio_dev_link_update(dev, 0);
+
return 0;
}
@@ -1636,6 +1643,7 @@ static void virtio_dev_free_mbufs(struct rte_eth_dev *dev)
static void
virtio_dev_stop(struct rte_eth_dev *dev)
{
+ struct virtio_hw *hw = dev->data->dev_private;
struct rte_eth_link link;
PMD_INIT_LOG(DEBUG, "stop");
@@ -1643,6 +1651,7 @@ virtio_dev_stop(struct rte_eth_dev *dev)
if (dev->data->dev_conf.intr_conf.lsc)
rte_intr_disable(&dev->pci_dev->intr_handle);
+ hw->started = 0;
memset(&link, 0, sizeof(link));
virtio_dev_atomic_write_link_status(dev, &link);
}
@@ -1659,7 +1668,9 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
link.link_duplex = ETH_LINK_FULL_DUPLEX;
link.link_speed = SPEED_10G;
- if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
+ if (hw->started == 0) {
+ link.link_status = ETH_LINK_DOWN;
+ } else if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
PMD_INIT_LOG(DEBUG, "Get link status from hw");
vtpci_read_dev_config(hw,
offsetof(struct virtio_net_config, status),