Hi Eli,
I don't know what's wrong, but I've only received replies through the
virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx mailing list.
Even in the archive I can't find your original series.
Adding virtualization-owner@xxxxxxxxxxxxxxxxxxxxxxxxxx to double check
what's going wrong.
Thanks,
Stefano
On Tue, Dec 14, 2021 at 11:17:00AM +0800, Jason Wang wrote:
On Mon, Dec 13, 2021 at 10:43 PM Eli Cohen <elic@xxxxxxxxxx> wrote:
Allow the user to configure the max number of virtqueue pairs for a vdpa
instance. The user can then control the actual number of virtqueue pairs
using ethtool.
Example, set number of VQPs to 2:
$ ethtool -L ens1 combined 2
A user can check the max supported virtqueues for a management device by
runnig:
vdpa dev show
vdpa-a: type network mgmtdev auxiliary/mlx5_core.sf.1 vendor_id 5555 \
max_vqp 3 max_vq_size 256 max_supported_vqs 256
I think the maxsupported_vqs should be an odd number since it should
contain control vq.
and refer to this value when adding a device.
To create a device with a max of 5 VQPs:
vdpa dev add name vdpa-a mgmtdev auxiliary/mlx5_core.sf.1 max_vqp 5
A question, consider the parent support both net and block, if user use
vdpa dev add name vdpa-a mgmtdev auxiliary/mlx5_core.sf.1
How do we know it's a net or block device? Or do you expect some block
specific attributes to be added?
Thanks
V1 -> V2:
1. Do not return the index of the control VQ. Instead return an
indication if Ctrl VQ was negotiated.
2. Do not returen conig information if FEATURES_OK is not set to avoid
reporting out of sync information.
3. Minor fixes as described by the individual patches
4. Add patches to return the max virtqueues a device is capable of
supporting.
Eli Cohen (10):
vdpa: Provide interface to read driver features
vdpa/mlx5: Distribute RX virtqueues in RQT object
vdpa: Read device configuration only if FEATURES_OK
vdpa: Allow to configure max data virtqueues
vdpa/mlx5: Fix config_attr_mask assignment
vdpa/mlx5: Support configuring max data virtqueue pairs
vdpa: Add support for returning device configuration information
vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()
vdpa: Support reporting max device virtqueues
vdpa/mlx5: Configure max supported virtqueues
drivers/vdpa/alibaba/eni_vdpa.c | 16 +++--
drivers/vdpa/ifcvf/ifcvf_main.c | 16 +++--
drivers/vdpa/mlx5/net/mlx5_vnet.c | 94 +++++++++++++++++-------------
drivers/vdpa/vdpa.c | 42 ++++++++++++-
drivers/vdpa/vdpa_sim/vdpa_sim.c | 21 +++++--
drivers/vdpa/vdpa_user/vduse_dev.c | 16 +++--
drivers/vdpa/virtio_pci/vp_vdpa.c | 16 +++--
drivers/vhost/vdpa.c | 2 +-
drivers/virtio/virtio_vdpa.c | 2 +-
include/linux/vdpa.h | 16 +++--
include/uapi/linux/vdpa.h | 9 +++
11 files changed, 178 insertions(+), 72 deletions(-)
--
2.33.1
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