[dpdk-dev] [RFC] A REST API based daemon of dpdk-devbind.py
Muhammad Ahmad
muhammad.ahmad at emumba.com
Wed Mar 4 08:11:05 CET 2020
Hi,
I have observed that the dpdk-devbind.py is an interactive tool and
not quite useful for automated testing in CI/CD. We are planning to
create “dpdk-usertools-server” for making it streamlined.
The idea is to create a separate application, which provides REST interface to:
- Query the current status of devices and drivers
- Bind and unbind devices to different drivers
Future extensions will be to make dpdk-pmdinfo.py, cpu_layout.py and
dpdk-setup.sh more automation friendly.
=================Details of API====================
-Query Status of devices:
Fetch the status of all devices or of a given group, supported
groups are: network, crypto, event and mempool devices.
URL: /devices
Method:GET
URL Params: type=[all|net|baseband|crypto|event|mempool|compress]
Sample call: curl http://127.0.0.1:5000/devices?type=crypto&type=net
Success Response:
HTTP response code: 200
Content:
[
{
"pci":"0000:b7:00.3",
"type":"net",
"infoString":"Ethernet Connection X722 for 10GbE SFP+ 37d0",
"interface":"eno8",
"driver":"i40e",
"unusedDriver":"igb_uio",
"active":false
}
]
Error response:
HTTP Code: 400 BAD REQUEST
Content:
{
"code": 1,
"message": "invalid type"
}
-Bind/Unbind device with a driver:
Bind the PCI devices to the given driver or “none” to unbind
URL:/devices/<pci>
Method: PUT
URL Prams: PCI=[PCI address]
Sample call: curl http://127.0.0.1:5000/devices/0000:b7:00.3
--header "Content-Type: application/json" --request PUT --data
'{driver:"igb_uio", force: false}'
Success Response:
HTTP response code: 200
Content:
{
"pci":"0000:b7:00.3",
"type":"net",
"infoString":"Ethernet Connection X722 for 10GbE SFP+ 37d0",
"interface":"",
"driver":"igb_uio",
"unusedDriver":"i40e",
"active":false
}
Error response:
Code: 400 BAD REQUEST
Content:
{
"code": 1,
"message": "invalid id"
}
OR
Code: 400 BAD REQUEST
Content:
{
"code": 2,
"message": "invalid driver"
}
OR
Code: 405 METHOD NOT ALLOWED
Content:
{
"code": 3,
"message": "PCI Device active run with force=TRUE"
}
=================++++++++====================
Signed-off-by: Muhammad Ahmad <muhammad.ahmad at emumba.com>
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