github/kata-containers
1
0
Fork 1
mirror of https://github.com/kata-containers/kata-containers.git synced 2025-07-31 23:36:12 +00:00
Code Issues Projects Releases Wiki Activity

use-cases: re-edit words in using-spdk-vhost-user

Browse Source 
Sentences for how to do host setup for vhost-user devices
were not clear, so re-edit them.

Fixes: #626

Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
This commit is contained in:
Liu Xiaodong 2020-03-30 11:43:41 -04:00
parent 90b9d82ce3
commit 77fb011bd1
1 changed files with 16 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
use-cases/using-SPDK-vhostuser-and-kata.md
View File

@ -180,17 +180,26 @@ used for vhost-user devices. The base directory is a configurable value,
with the default being `/var/run/kata-containers/vhost-user`. It can be
configured by parameter `vhost_user_store_path` in [Kata TOML configuration file](https://github.com/kata-containers/runtime/blob/master/README.md#configuration).
The reset of the path `block` is used for block device; `block/sockets` is where
we expect vhost-user sockets to live; `block/sockets` is where simulated block
device node for vhost-user devices to live.
For the subdirectories of `vhost_user_store_path`: `block` is used for block
device; `block/sockets` is where we expect UNIX domain sockets for vhost-user
block devices to live; `block/devices` is where simulated block device nodes
for vhost-user block devices are created.
For the subdirectories of `vhost_user_store_path`:
- `block` is used for block device;
- `block/sockets` is where we expect UNIX domain sockets for vhost-user
block devices to live;
- `block/devices` is where simulated block device nodes for vhost-user
block devices are created.
For example, if using the default directory `/var/run/kata-containers/vhost-user`,
sockets for vhost-user device are under `/var/run/kata-containers/vhost-user/block/sockets/`.
Device nodes for vhost-user device are under `/var/run/kata-containers/vhost-user/block/devices/`.
UNIX domain sockets for vhost-user block device are under `/var/run/kata-containers/vhost-user/block/sockets/`.
Device nodes for vhost-user block device are under `/var/run/kata-containers/vhost-user/block/devices/`.
Currently, Kata has chosen major number 241 to map to `vhost-user-blk` devices.
For `vhost-user-blk` device `vhostblk0`, create a block device node with major
`241` and minor `0` for it in order to be recognized by Kata Containers runtime:
For `vhost-user-blk` device named `vhostblk0`, a UNIX domain socket is already
created by SPDK vhost target, and a block device node with major `241` and
minor `0` should be created for it, in order to be recognized by Kata runtime:
```bash
$ sudo mknod /var/run/kata-containers/vhost-user/block/devices/vhostblk0 b 241 0