Re: [PATCH V2 vhost next 10/10] vdpa/mlx5: Add VDPA driver for supported mlx5 devices

From: Jason Wang
Date: Tue Jul 21 2020 - 01:52:15 EST



On 2020/7/20 äå3:14, Eli Cohen wrote:
Add a front end VDPA driver that registers in the VDPA bus and provides
networking to a guest. The VDPA driver creates the necessary resources
on the VF it is driving such that data path will be offloaded.

Notifications are being communicated through the driver.

Currently, only VFs are supported. In subsequent patches we will have
devlink support to control which VF is used for VDPA and which function
is used for regular networking.

Reviewed-by: Parav Pandit<parav@xxxxxxxxxxxx>
Signed-off-by: Eli Cohen<eli@xxxxxxxxxxxx>
---
Changes from V0:
1. Fix include path usage
2. Fix use after free in qp_create()
3. Consistently use mvq->initialized to check if a vq was initialized.
4. Remove unused local variable.
5. Defer modifyig vq to ready to driver ok
6. suspend hardware vq in set_vq_ready(0)
7. Remove reservation for control VQ since it multi queue is not supported in this version
8. Avoid call put_device() since this is not a pci device driver.


Looks good to me.

Acked-by: Jason Wang <jasowang@xxxxxxxxxx>