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vhost: add hint on how to add or remove device to a data core

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Let's make sure people will not forget to set and unset VIRTIO_DEV_RUNNING.

Signed-off-by: Benoît Canet <benoit.canet@nodalink.com>
Acked-by: Huawei Xie <huawei.xie@intel.com>
This commit is contained in:
Benoît Canet 2015-02-27 11:22:45 +01:00 committed by Thomas Monjalon
parent 01fa1d6215
commit 45db8927a8
2 changed files with 6 additions and 1 deletions
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3
doc/guides/prog_guide/vhost_lib.rst
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@ -58,7 +58,8 @@ Vhost API Overview
register two callbacks, new_destory and destroy_device.
When virtio device is activated or deactivated by guest virtual machine,
the callback will be called, then vSwitch could put the device onto data
core or remove the device from data core.
core or remove the device from data core by setting or unsetting
VIRTIO_DEV_RUNNING on the device flags.
* Read/write packets from/to guest virtual machine

4
lib/librte_vhost/rte_virtio_net.h
View File

@ -130,6 +130,10 @@ struct virtio_memory {
/**
* Device operations to add/remove device.
*
* Make sure to set VIRTIO_DEV_RUNNING to the device flags in new_device and
* remove it in destroy_device.
*
*/
struct virtio_net_device_ops {
int (*new_device)(struct virtio_net *); /**< Add device. */