From: Yunjian Wang <wangyunjian@huawei.com>
The flag RTE_ETH_DEV_CLOSE_REMOVE is set so all port resources
can be freed by rte_eth_dev_close().
Freeing of private port resources is moved
from the ".remove(device)" to the ".dev_close(port)" operation.
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
drivers/net/tap/rte_eth_tap.c | 51 +++++++++++++++++++----------------
1 file changed, 28 insertions(+), 23 deletions(-)
@@ -72,6 +72,10 @@
static int tap_devices_count;
+static const char *tuntap_types[ETH_TUNTAP_TYPE_MAX] = {
+ "UNKNOWN", "TUN", "TAP"
+};
+
static const char *valid_arguments[] = {
ETH_TAP_IFACE_ARG,
ETH_TAP_REMOTE_ARG,
@@ -1075,6 +1079,11 @@ tap_dev_close(struct rte_eth_dev *dev)
struct pmd_process_private *process_private = dev->process_private;
struct rx_queue *rxq;
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ rte_free(dev->process_private);
+ return 0;
+ }
+
tap_link_set_down(dev);
if (internals->nlsk_fd != -1) {
tap_flow_flush(dev, NULL);
@@ -1112,6 +1121,23 @@ tap_dev_close(struct rte_eth_dev *dev)
close(internals->ka_fd);
internals->ka_fd = -1;
}
+
+ /* mac_addrs must not be freed alone because part of dev_private */
+ dev->data->mac_addrs = NULL;
+
+ internals = dev->data->dev_private;
+ TAP_LOG(DEBUG, "Closing %s Ethernet device on numa %u",
+ tuntap_types[internals->type], rte_socket_id());
+
+ if (internals->ioctl_sock != -1) {
+ close(internals->ioctl_sock);
+ internals->ioctl_sock = -1;
+ }
+ rte_free(dev->process_private);
+ dev->process_private = NULL;
+ if (tap_devices_count == 1)
+ rte_mp_action_unregister(TAP_MP_KEY);
+ tap_devices_count--;
/*
* Since TUN device has no more opened file descriptors
* it will be removed from kernel
@@ -1845,10 +1871,6 @@ static const struct eth_dev_ops ops = {
.filter_ctrl = tap_dev_filter_ctrl,
};
-static const char *tuntap_types[ETH_TUNTAP_TYPE_MAX] = {
- "UNKNOWN", "TUN", "TAP"
-};
-
static int
eth_dev_tap_create(struct rte_vdev_device *vdev, const char *tap_name,
char *remote_iface, struct rte_ether_addr *mac_addr,
@@ -1900,7 +1922,7 @@ eth_dev_tap_create(struct rte_vdev_device *vdev, const char *tap_name,
/* Setup some default values */
data = dev->data;
data->dev_private = pmd;
- data->dev_flags = RTE_ETH_DEV_INTR_LSC;
+ data->dev_flags = RTE_ETH_DEV_INTR_LSC | RTE_ETH_DEV_CLOSE_REMOVE;
data->numa_node = numa_node;
data->dev_link = pmd_link;
@@ -2492,30 +2514,13 @@ static int
rte_pmd_tap_remove(struct rte_vdev_device *dev)
{
struct rte_eth_dev *eth_dev = NULL;
- struct pmd_internals *internals;
/* find the ethdev entry */
eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev));
if (!eth_dev)
- return -ENODEV;
-
- /* mac_addrs must not be freed alone because part of dev_private */
- eth_dev->data->mac_addrs = NULL;
-
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
- return rte_eth_dev_release_port(eth_dev);
+ return 0;
tap_dev_close(eth_dev);
-
- internals = eth_dev->data->dev_private;
- TAP_LOG(DEBUG, "Closing %s Ethernet device on numa %u",
- tuntap_types[internals->type], rte_socket_id());
-
- close(internals->ioctl_sock);
- rte_free(eth_dev->process_private);
- if (tap_devices_count == 1)
- rte_mp_action_unregister(TAP_MP_KEY);
- tap_devices_count--;
rte_eth_dev_release_port(eth_dev);
return 0;